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Mercury_SC_406058

A car has a small gasoline engine combined with a battery-powered electric motor. When the car stops at a red light, the gasoline engine stops running and the electric motor begins working. How does this type of car most likely benefit people?

B

Question: A car has a small gasoline engine combined with a battery-powered electric motor. When the car stops at a red light, the gasoline engine stops running and the electric motor begins working. How does this type of car most likely benefit people? (A) reduces traffic (B) uses less gasoline (C) accelerates faster (D) carries more passengers

Answer: (B) uses less gasoline

Answer: (A) reduces traffic

Question: A car has a small gasoline engine combined with a battery-powered electric motor. When the car stops at a red light, the gasoline engine stops running and the electric motor begins working. How does this type of car most likely benefit people? (A) reduces traffic (B) uses less gasoline (C) accelerates faster (D) carries more passengers Answer: (B) uses less gasoline

Mercury_7215215

Increased populations can lead to the depletion of locally available resources. Compared to other communities, which of these locally available resources is most likely to be depleted in desert communities?

D

Question: Increased populations can lead to the depletion of locally available resources. Compared to other communities, which of these locally available resources is most likely to be depleted in desert communities? (A) mineral (B) oxygen (C) gasoline (D) water

Answer: (D) water

Answer: (A) mineral

Question: Increased populations can lead to the depletion of locally available resources. Compared to other communities, which of these locally available resources is most likely to be depleted in desert communities? (A) mineral (B) oxygen (C) gasoline (D) water Answer: (D) water

Mercury_7222478

Where is the first place a scientist should present new research data about the structure of a galaxy in order to receive the most appropriate review of the research?

C

Question: Where is the first place a scientist should present new research data about the structure of a galaxy in order to receive the most appropriate review of the research? (A) a high school science classroom (B) a university science blog (C) a peer-reviewed science journal (D) a popular science news magazine

Answer: (C) a peer-reviewed science journal

Answer: (B) a university science blog

Question: Where is the first place a scientist should present new research data about the structure of a galaxy in order to receive the most appropriate review of the research? (A) a high school science classroom (B) a university science blog (C) a peer-reviewed science journal (D) a popular science news magazine Answer: (C) a peer-reviewed science journal

AKDE&ED_2012_4_10

Which action most likely causes large rocks to become smaller pieces of rock?

B

Question: Which action most likely causes large rocks to become smaller pieces of rock? (A) melting inside of Earth (B) weathering by wind and water (C) cementing by mud and minerals (D) being pressed between layers of soil

Answer: (B) weathering by wind and water

Answer: (C) cementing by mud and minerals

Question: Which action most likely causes large rocks to become smaller pieces of rock? (A) melting inside of Earth (B) weathering by wind and water (C) cementing by mud and minerals (D) being pressed between layers of soil Answer: (B) weathering by wind and water

Mercury_SC_408562

European starlings are birds that take over the nests of other birds. When they move into an area, starlings reproduce quickly. Taking over the nests of other birds most likely increases the number of starlings by helping them to do what?

B

Question: European starlings are birds that take over the nests of other birds. When they move into an area, starlings reproduce quickly. Taking over the nests of other birds most likely increases the number of starlings by helping them to do what? (A) attract a better mate (B) compete for resources (C) migrate during the winter (D) blend in with the environment

Answer: (B) compete for resources

Answer: (D) blend in with the environment

Question: European starlings are birds that take over the nests of other birds. When they move into an area, starlings reproduce quickly. Taking over the nests of other birds most likely increases the number of starlings by helping them to do what? (A) attract a better mate (B) compete for resources (C) migrate during the winter (D) blend in with the environment Answer: (B) compete for resources

MCAS_2008_5_5635

Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile?

D

Question: Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile? (A) The bacteria break down water into food. (B) The bacteria change sunlight into minerals. (C) The bacteria combine with sand to form rocks. (D) The bacteria break down plant and animal matter.

Answer: (D) The bacteria break down plant and animal matter.

Answer: (A) The bacteria break down water into food.

Question: Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile? (A) The bacteria break down water into food. (B) The bacteria change sunlight into minerals. (C) The bacteria combine with sand to form rocks. (D) The bacteria break down plant and animal matter. Answer: (D) The bacteria break down plant and animal matter.

Mercury_7014473

In Rutherford's experiment, what caused some high-energy particles to bounce off the metal, while most pass straight through?

C

Question: In Rutherford's experiment, what caused some high-energy particles to bounce off the metal, while most pass straight through? (A) light waves (B) magnetic waves (C) positive charges (D) negative charges

Answer: (C) positive charges

Answer: (D) negative charges

Question: In Rutherford's experiment, what caused some high-energy particles to bounce off the metal, while most pass straight through? (A) light waves (B) magnetic waves (C) positive charges (D) negative charges Answer: (C) positive charges

Mercury_SC_405337

Jenny's class made an instrument to measure air pressure. The instrument is a

C

Question: Jenny's class made an instrument to measure air pressure. The instrument is a (A) thermometer. (B) rain gauge. (C) barometer. (D) wind vane.

Answer: (C) barometer.

Answer: (A) thermometer.

Question: Jenny's class made an instrument to measure air pressure. The instrument is a (A) thermometer. (B) rain gauge. (C) barometer. (D) wind vane. Answer: (C) barometer.

Mercury_7057628

Condensation in the water cycle can best be described as the result of water vapor

A

Question: Condensation in the water cycle can best be described as the result of water vapor (A) rising into the atmosphere, cooling and changing into a liquid form. (B) rising into the atmosphere, warming and changing into a gaseous form. (C) changing from a liquid form into a solid and forming snow. (D) changing from a gas form into a solid and forming hail.

Answer: (A) rising into the atmosphere, cooling and changing into a liquid form.

Answer: (B) rising into the atmosphere, warming and changing into a gaseous form.

Question: Condensation in the water cycle can best be described as the result of water vapor (A) rising into the atmosphere, cooling and changing into a liquid form. (B) rising into the atmosphere, warming and changing into a gaseous form. (C) changing from a liquid form into a solid and forming snow. (D) changing from a gas form into a solid and forming hail. Answer: (A) rising into the atmosphere, cooling and changing into a liquid form.

MCAS_2008_8_5706

New carpet is being measured for a room that is 5.5 m by 4.6 m. On a measuring tape, what is the smallest unit that is necessary to measure the room accurately for the carpet?

B

Question: New carpet is being measured for a room that is 5.5 m by 4.6 m. On a measuring tape, what is the smallest unit that is necessary to measure the room accurately for the carpet? (A) millimeters (B) centimeters (C) meters (D) kilometers

Answer: (B) centimeters

Answer: (C) meters

Question: New carpet is being measured for a room that is 5.5 m by 4.6 m. On a measuring tape, what is the smallest unit that is necessary to measure the room accurately for the carpet? (A) millimeters (B) centimeters (C) meters (D) kilometers Answer: (B) centimeters

Mercury_7107205

How does an ecosystem benefit when leaves fall from a tree and decompose on the soil?

A

Question: How does an ecosystem benefit when leaves fall from a tree and decompose on the soil? (A) Nutrients are released into the soil. (B) Soil erosion decreases. (C) Carbon dioxide is absorbed by the soil. (D) Soil temperature decreases.

Answer: (A) Nutrients are released into the soil.

Answer: (B) Soil erosion decreases.

Question: How does an ecosystem benefit when leaves fall from a tree and decompose on the soil? (A) Nutrients are released into the soil. (B) Soil erosion decreases. (C) Carbon dioxide is absorbed by the soil. (D) Soil temperature decreases. Answer: (A) Nutrients are released into the soil.

CSZ10292

Which of the following gases do plants use in photosynthesis?

C

Question: Which of the following gases do plants use in photosynthesis? (A) hydrogen (B) oxygen (C) carbon dioxide (D) carbon monoxide

Answer: (C) carbon dioxide

Answer: (D) carbon monoxide

Question: Which of the following gases do plants use in photosynthesis? (A) hydrogen (B) oxygen (C) carbon dioxide (D) carbon monoxide Answer: (C) carbon dioxide

Mercury_7026583

During an ice age, enormous ice sheets called glaciers increase in size on Earth's surface, resulting in decreased ocean depths. Due to global cooling, the water cycle is disrupted between which two stages to cause an increase in glacier size?

C

Question: During an ice age, enormous ice sheets called glaciers increase in size on Earth's surface, resulting in decreased ocean depths. Due to global cooling, the water cycle is disrupted between which two stages to cause an increase in glacier size? (A) runoff and evaporation (B) transpiration and precipitation (C) precipitation and runoff (D) transpiration and evaporation

Answer: (C) precipitation and runoff

Answer: (A) runoff and evaporation

Question: During an ice age, enormous ice sheets called glaciers increase in size on Earth's surface, resulting in decreased ocean depths. Due to global cooling, the water cycle is disrupted between which two stages to cause an increase in glacier size? (A) runoff and evaporation (B) transpiration and precipitation (C) precipitation and runoff (D) transpiration and evaporation Answer: (C) precipitation and runoff

Mercury_7194285

Different units of measurement are more useful in some settings than in others. Which unit of measurement is most used when comparing distances within the solar system?

D

Question: Different units of measurement are more useful in some settings than in others. Which unit of measurement is most used when comparing distances within the solar system? (A) the mile (B) the kilometer (C) the light year (D) the astronomical unit

Answer: (D) the astronomical unit

Answer: (C) the light year

Question: Different units of measurement are more useful in some settings than in others. Which unit of measurement is most used when comparing distances within the solar system? (A) the mile (B) the kilometer (C) the light year (D) the astronomical unit Answer: (D) the astronomical unit

Mercury_7086818

The formation of diamonds requires tremendous pressure that is generated

D

Question: The formation of diamonds requires tremendous pressure that is generated (A) in deep ocean trenches. (B) high in the mountains. (C) in dry environments. (D) deep below the crust.

Answer: (D) deep below the crust.

Answer: (A) in deep ocean trenches.

Question: The formation of diamonds requires tremendous pressure that is generated (A) in deep ocean trenches. (B) high in the mountains. (C) in dry environments. (D) deep below the crust. Answer: (D) deep below the crust.

Mercury_SC_402269

What characteristic helps a rabbit survive in a winter environment?

D

Question: What characteristic helps a rabbit survive in a winter environment? (A) size (B) strength (C) long ears (D) camouflage

Answer: (D) camouflage

Answer: (A) size

Question: What characteristic helps a rabbit survive in a winter environment? (A) size (B) strength (C) long ears (D) camouflage Answer: (D) camouflage

Mercury_SC_400345

A science class is taking a field trip to a forest to observe and study birds. Which tool would be most helpful for observing birds?

B

Question: A science class is taking a field trip to a forest to observe and study birds. Which tool would be most helpful for observing birds? (A) beakers (B) binoculars (C) safety goggles (D) microscopes

Answer: (B) binoculars

Answer: (D) microscopes

Question: A science class is taking a field trip to a forest to observe and study birds. Which tool would be most helpful for observing birds? (A) beakers (B) binoculars (C) safety goggles (D) microscopes Answer: (B) binoculars

MCAS_2000_4_22

An example of an instinct is

D

Question: An example of an instinct is (A) laughing at something funny. (B) dogs doing tricks when told. (C) doing your homework at the same time each day. (D) salmon returning to their birthplace to lay their eggs.

Answer: (D) salmon returning to their birthplace to lay their eggs.

Answer: (B) dogs doing tricks when told.

Question: An example of an instinct is (A) laughing at something funny. (B) dogs doing tricks when told. (C) doing your homework at the same time each day. (D) salmon returning to their birthplace to lay their eggs. Answer: (D) salmon returning to their birthplace to lay their eggs.

Mercury_7221690

During which change of state do the particles of a substance move from being tightly packed together to having more freedom of movement?

A

Question: During which change of state do the particles of a substance move from being tightly packed together to having more freedom of movement? (A) a solid becoming a liquid (B) a gas becoming a solid (C) a gas becoming a liquid (D) a liquid becoming a solid

Answer: (A) a solid becoming a liquid

Answer: (D) a liquid becoming a solid

Question: During which change of state do the particles of a substance move from being tightly packed together to having more freedom of movement? (A) a solid becoming a liquid (B) a gas becoming a solid (C) a gas becoming a liquid (D) a liquid becoming a solid Answer: (A) a solid becoming a liquid

Mercury_7094990

When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity?

C

Question: When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity? (A) density (B) diameter (C) mass (D) volume

Answer: (C) mass

Answer: (D) volume

Question: When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity? (A) density (B) diameter (C) mass (D) volume Answer: (C) mass

Mercury_7211120

A population of wood mice lives in a cool, moist temperate forest. Several years of hot, dry weather have affected the plants in the area. Which mice in the population are most likely to survive this change and pass their genes on to their offspring?

C

Question: A population of wood mice lives in a cool, moist temperate forest. Several years of hot, dry weather have affected the plants in the area. Which mice in the population are most likely to survive this change and pass their genes on to their offspring? (A) those with the warmest coats and best camouflage (B) the largest and strongest mice in the population (C) those with traits most adapted to the new environment (D) the youngest and fastest mice in the population

Answer: (C) those with traits most adapted to the new environment

Answer: (D) the youngest and fastest mice in the population

Question: A population of wood mice lives in a cool, moist temperate forest. Several years of hot, dry weather have affected the plants in the area. Which mice in the population are most likely to survive this change and pass their genes on to their offspring? (A) those with the warmest coats and best camouflage (B) the largest and strongest mice in the population (C) those with traits most adapted to the new environment (D) the youngest and fastest mice in the population Answer: (C) those with traits most adapted to the new environment

MCAS_2003_8_16

Harmful ultraviolet rays from the Sun are primarily absorbed by

B

Question: Harmful ultraviolet rays from the Sun are primarily absorbed by (A) dust. (B) ozone. (C) land masses. (D) water vapor.

Answer: (B) ozone.

Answer: (A) dust.

Question: Harmful ultraviolet rays from the Sun are primarily absorbed by (A) dust. (B) ozone. (C) land masses. (D) water vapor. Answer: (B) ozone.

Mercury_SC_400535

Which of these is most likely caused by the action of water, wind, and animals?

B

Question: Which of these is most likely caused by the action of water, wind, and animals? (A) mountains (B) erosion (C) earthquakes (D) volcanic eruptions

Answer: (B) erosion

Answer: (A) mountains

Question: Which of these is most likely caused by the action of water, wind, and animals? (A) mountains (B) erosion (C) earthquakes (D) volcanic eruptions Answer: (B) erosion

Mercury_7057698

The core of Earth is divided into two layers. The outer core is made of

D

Question: The core of Earth is divided into two layers. The outer core is made of (A) basaltic rocks. (B) silicate rocks. (C) solid iron and nickel. (D) molten iron and nickel.

Answer: (D) molten iron and nickel.

Answer: (C) solid iron and nickel.

Question: The core of Earth is divided into two layers. The outer core is made of (A) basaltic rocks. (B) silicate rocks. (C) solid iron and nickel. (D) molten iron and nickel. Answer: (D) molten iron and nickel.

MSA_2015_5_38

Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because

A

Question: Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because (A) leaking oil from the oil platform might pollute the water (B) fishing from the oil platform might reduce the fish population (C) drilling in the ocean floor might reduce the water temperature (D) changing the ocean floor might increase the number of hurricanes

Answer: (A) leaking oil from the oil platform might pollute the water

Answer: (C) drilling in the ocean floor might reduce the water temperature

Question: Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because (A) leaking oil from the oil platform might pollute the water (B) fishing from the oil platform might reduce the fish population (C) drilling in the ocean floor might reduce the water temperature (D) changing the ocean floor might increase the number of hurricanes Answer: (A) leaking oil from the oil platform might pollute the water

Mercury_7077473

An object such as a hammer weighs less on the Moon than on Earth. This is because the Moon has a

D

Question: An object such as a hammer weighs less on the Moon than on Earth. This is because the Moon has a (A) thinner atmosphere than Earth. (B) smaller diameter than Earth. (C) stronger magnetic field than Earth. (D) lower mass than Earth.

Answer: (D) lower mass than Earth.

Answer: (B) smaller diameter than Earth.

Question: An object such as a hammer weighs less on the Moon than on Earth. This is because the Moon has a (A) thinner atmosphere than Earth. (B) smaller diameter than Earth. (C) stronger magnetic field than Earth. (D) lower mass than Earth. Answer: (D) lower mass than Earth.

Mercury_SC_401647

A scientist plans a project to determine the effect of rain on the formation of caves. An area of rock has been chosen as the site for the investigation. How often should the scientist measure the changes in the rock?

D

Question: A scientist plans a project to determine the effect of rain on the formation of caves. An area of rock has been chosen as the site for the investigation. How often should the scientist measure the changes in the rock? (A) every day (B) every week (C) every month (D) every year

Answer: (D) every year

Answer: (C) every month

Question: A scientist plans a project to determine the effect of rain on the formation of caves. An area of rock has been chosen as the site for the investigation. How often should the scientist measure the changes in the rock? (A) every day (B) every week (C) every month (D) every year Answer: (D) every year

Mercury_7085523

Which type of rock is formed from limestone that has been compacted, heated, and recrystallized?

C

Question: Which type of rock is formed from limestone that has been compacted, heated, and recrystallized? (A) siltstone (B) sandstone (C) marble (D) shale

Answer: (C) marble

Answer: (D) shale

Question: Which type of rock is formed from limestone that has been compacted, heated, and recrystallized? (A) siltstone (B) sandstone (C) marble (D) shale Answer: (C) marble

Mercury_7158953

Isabel goes jogging for two miles on a sunny afternoon. At the end of her run, she is warmer. As Isabel jogs, which function does the skin perform to help stabilize her body temperature?

D

Question: Isabel goes jogging for two miles on a sunny afternoon. At the end of her run, she is warmer. As Isabel jogs, which function does the skin perform to help stabilize her body temperature? (A) Her skin exchanges oxygen and carbon dioxide. (B) Her skin produces red blood cells. (C) Her skin releases hormones. (D) Her skin discharges water.

Answer: (D) Her skin discharges water.

Answer: (C) Her skin releases hormones.

Question: Isabel goes jogging for two miles on a sunny afternoon. At the end of her run, she is warmer. As Isabel jogs, which function does the skin perform to help stabilize her body temperature? (A) Her skin exchanges oxygen and carbon dioxide. (B) Her skin produces red blood cells. (C) Her skin releases hormones. (D) Her skin discharges water. Answer: (D) Her skin discharges water.

Mercury_SC_416460

Which cell can survive without the help of other cells?

B

Question: Which cell can survive without the help of other cells? (A) leaf cell (B) yeast cell (C) onion cell (D) muscle cell

Answer: (B) yeast cell

Answer: (C) onion cell

Question: Which cell can survive without the help of other cells? (A) leaf cell (B) yeast cell (C) onion cell (D) muscle cell Answer: (B) yeast cell

TAKS_2009_8_23

Two students make hot chocolate. One student pours the hot chocolate into a foam cup. The other student pours the hot chocolate into a metal cup. The metal cup becomes too hot to touch, but the foam cup can be held comfortably. The best explanation for this difference in temperature is that the foam cup-- A heats up much faster than the metal cup

B

Question: Two students make hot chocolate. One student pours the hot chocolate into a foam cup. The other student pours the hot chocolate into a metal cup. The metal cup becomes too hot to touch, but the foam cup can be held comfortably. The best explanation for this difference in temperature is that the foam cup-- A heats up much faster than the metal cup (A) has a higher specific heat than the metal cup (B) is a better conductor of heat than the metal cup (C) has a specific heat that is similar to that of the metal cup

Answer: (B) is a better conductor of heat than the metal cup

Answer: (A) has a higher specific heat than the metal cup

Question: Two students make hot chocolate. One student pours the hot chocolate into a foam cup. The other student pours the hot chocolate into a metal cup. The metal cup becomes too hot to touch, but the foam cup can be held comfortably. The best explanation for this difference in temperature is that the foam cup-- A heats up much faster than the metal cup (A) has a higher specific heat than the metal cup (B) is a better conductor of heat than the metal cup (C) has a specific heat that is similar to that of the metal cup Answer: (B) is a better conductor of heat than the metal cup

Mercury_SC_408890

Frogs and salamanders compete with each other for insects. Both frogs and salamanders catch flying insects with their tongues. Which feature would most likely help both animals compete for flying insects?

A

Question: Frogs and salamanders compete with each other for insects. Both frogs and salamanders catch flying insects with their tongues. Which feature would most likely help both animals compete for flying insects? (A) sticky tongues (B) bright tongues (C) thick tongues (D) short tongues

Answer: (A) sticky tongues

Answer: (C) thick tongues

Question: Frogs and salamanders compete with each other for insects. Both frogs and salamanders catch flying insects with their tongues. Which feature would most likely help both animals compete for flying insects? (A) sticky tongues (B) bright tongues (C) thick tongues (D) short tongues Answer: (A) sticky tongues

Mercury_406803

Which interaction benefits both organisms?

B

Question: Which interaction benefits both organisms? (A) a flea living on a dog (B) a bee pollinating a flower (C) a tapeworm living inside an animal (D) a mosquito biting a person

Answer: (B) a bee pollinating a flower

Answer: (D) a mosquito biting a person

Question: Which interaction benefits both organisms? (A) a flea living on a dog (B) a bee pollinating a flower (C) a tapeworm living inside an animal (D) a mosquito biting a person Answer: (B) a bee pollinating a flower

Mercury_7214323

Which type of rock is formed when limestone is subjected to heat and pressure?

C

Question: Which type of rock is formed when limestone is subjected to heat and pressure? (A) sandstone (B) basalt (C) marble (D) granite

Answer: (C) marble

Answer: (D) granite

Question: Which type of rock is formed when limestone is subjected to heat and pressure? (A) sandstone (B) basalt (C) marble (D) granite Answer: (C) marble

FCAT_2008_5_5

Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing?

A

Question: Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing? (A) hail (B) rain (C) sleet (D) snow

Answer: (A) hail

Answer: (B) rain

Question: Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing? (A) hail (B) rain (C) sleet (D) snow Answer: (A) hail

NYSEDREGENTS_2004_8_13

A change in the environment that causes a response is known as a

1

Question: A change in the environment that causes a response is known as a (1) stimulus (2) habit (3) reflex (4) source

Answer: (1) stimulus

Answer: (3) reflex

Question: A change in the environment that causes a response is known as a (1) stimulus (2) habit (3) reflex (4) source Answer: (1) stimulus

Mercury_7212118

Aluminum is an element. Which of the following best describes the smallest particle of aluminum that retains all the properties of aluminum?

B

Question: Aluminum is an element. Which of the following best describes the smallest particle of aluminum that retains all the properties of aluminum? (A) a molecule (B) an atom (C) a proton (D) an electron

Answer: (B) an atom

Answer: (A) a molecule

Question: Aluminum is an element. Which of the following best describes the smallest particle of aluminum that retains all the properties of aluminum? (A) a molecule (B) an atom (C) a proton (D) an electron Answer: (B) an atom

Mercury_176943

What advantage do sea stars gain from having radial symmetry?

D

Question: What advantage do sea stars gain from having radial symmetry? (A) They reproduce at a faster rate. (B) They digest food more efficiently. (C) They move quickly along the ground. (D) They sense predators and potential food from all directions.

Answer: (D) They sense predators and potential food from all directions.

Answer: (B) They digest food more efficiently.

Question: What advantage do sea stars gain from having radial symmetry? (A) They reproduce at a faster rate. (B) They digest food more efficiently. (C) They move quickly along the ground. (D) They sense predators and potential food from all directions. Answer: (D) They sense predators and potential food from all directions.

NYSEDREGENTS_2004_4_21

A student has a ball of clay that sinks when placed in a pan of water. Which property should he change to make the clay float?

D

Question: A student has a ball of clay that sinks when placed in a pan of water. Which property should he change to make the clay float? (A) color (B) texture (C) mass (D) shape

Answer: (D) shape

Answer: (C) mass

Question: A student has a ball of clay that sinks when placed in a pan of water. Which property should he change to make the clay float? (A) color (B) texture (C) mass (D) shape Answer: (D) shape

MCAS_2005_8_26

The population of which of the following 26 organisms would most likely decline if small animals like rats, rabbits, and snakes were eliminated from an ecosystem?

C

Question: The population of which of the following 26 organisms would most likely decline if small animals like rats, rabbits, and snakes were eliminated from an ecosystem? (A) earthworms (B) grasses (C) hawks (D) mushrooms

Answer: (C) hawks

Answer: (B) grasses

Question: The population of which of the following 26 organisms would most likely decline if small animals like rats, rabbits, and snakes were eliminated from an ecosystem? (A) earthworms (B) grasses (C) hawks (D) mushrooms Answer: (C) hawks

AKDE&ED_2012_8_39

During a lab investigation, students were asked to determine the best way to clean up an oil spill using different materials. Investigation Materials • filter paper • foam sponge • metal wire screen • thin sock filled with hair The students tested the materials by placing each material into separate buckets containing oil and water. They recorded their observations on which material absorbed the most oil. Why would the students' teacher ask them to repeat their tests?

C

Question: During a lab investigation, students were asked to determine the best way to clean up an oil spill using different materials. Investigation Materials • filter paper • foam sponge • metal wire screen • thin sock filled with hair The students tested the materials by placing each material into separate buckets containing oil and water. They recorded their observations on which material absorbed the most oil. Why would the students' teacher ask them to repeat their tests? (A) to determine if water and oil can be separated (B) to learn more about how to protect wildlife during an oil spill (C) to improve the chances of obtaining accurate oil cleanup results (D) to increase the total amount of oil removed from each container

Answer: (C) to improve the chances of obtaining accurate oil cleanup results

Answer: (D) to increase the total amount of oil removed from each container

Question: During a lab investigation, students were asked to determine the best way to clean up an oil spill using different materials. Investigation Materials • filter paper • foam sponge • metal wire screen • thin sock filled with hair The students tested the materials by placing each material into separate buckets containing oil and water. They recorded their observations on which material absorbed the most oil. Why would the students' teacher ask them to repeat their tests? (A) to determine if water and oil can be separated (B) to learn more about how to protect wildlife during an oil spill (C) to improve the chances of obtaining accurate oil cleanup results (D) to increase the total amount of oil removed from each container Answer: (C) to improve the chances of obtaining accurate oil cleanup results

Mercury_SC_402635

A delta can be seen from the air at the mouth of the Mississippi River. This delta was formed by

D

Question: A delta can be seen from the air at the mouth of the Mississippi River. This delta was formed by (A) erosion. (B) weathering. (C) conservation of soil. (D) deposition of sediment.

Answer: (D) deposition of sediment.

Answer: (A) erosion.

Question: A delta can be seen from the air at the mouth of the Mississippi River. This delta was formed by (A) erosion. (B) weathering. (C) conservation of soil. (D) deposition of sediment. Answer: (D) deposition of sediment.

Mercury_7021228

The nose, mouth, and diaphragm are parts of which body system?

D

Question: The nose, mouth, and diaphragm are parts of which body system? (A) digestive (B) muscular (C) circulatory (D) respiratory

Answer: (D) respiratory

Answer: (B) muscular

Question: The nose, mouth, and diaphragm are parts of which body system? (A) digestive (B) muscular (C) circulatory (D) respiratory Answer: (D) respiratory

AKDE&ED_2008_4_1

Students are studying some leaves. They group the leaves by shape. Which science process are the students using when they put the leaves in different groups?

A

Question: Students are studying some leaves. They group the leaves by shape. Which science process are the students using when they put the leaves in different groups? (A) classifying (B) predicting (C) measuring (D) experimenting

Answer: (A) classifying

Answer: (B) predicting

Question: Students are studying some leaves. They group the leaves by shape. Which science process are the students using when they put the leaves in different groups? (A) classifying (B) predicting (C) measuring (D) experimenting Answer: (A) classifying

Mercury_7216825

The thin, semi-permeable membrane that encloses a cell allows nutrients to enter and wastes to be

D

Question: The thin, semi-permeable membrane that encloses a cell allows nutrients to enter and wastes to be (A) digested. (B) recycled. (C) protected. (D) excreted.

Answer: (D) excreted.

Answer: (A) digested.

Question: The thin, semi-permeable membrane that encloses a cell allows nutrients to enter and wastes to be (A) digested. (B) recycled. (C) protected. (D) excreted. Answer: (D) excreted.

TIMSS_2003_8_pg34

A small, fast-moving river in is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain?

C

Question: A small, fast-moving river in is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain? (A) Much the same (B) Deeper and faster (C) Slower and wider (D) Straighter

Answer: (C) Slower and wider

Answer: (B) Deeper and faster

Question: A small, fast-moving river in is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain? (A) Much the same (B) Deeper and faster (C) Slower and wider (D) Straighter Answer: (C) Slower and wider

Mercury_7235743

The atmosphere of Mars is almost entirely composed of a greenhouse gas. Compared with Earth, which factor accounts for the low, nighttime surface temperatures on Mars?

B

Question: The atmosphere of Mars is almost entirely composed of a greenhouse gas. Compared with Earth, which factor accounts for the low, nighttime surface temperatures on Mars? (A) Mars is much farther from the Sun than Earth. (B) The atmosphere on Mars has an extremely low density. (C) The atmosphere on Mars lacks global circulation. (D) Mars has more glacial activity than Earth.

Answer: (B) The atmosphere on Mars has an extremely low density.

Answer: (C) The atmosphere on Mars lacks global circulation.

Question: The atmosphere of Mars is almost entirely composed of a greenhouse gas. Compared with Earth, which factor accounts for the low, nighttime surface temperatures on Mars? (A) Mars is much farther from the Sun than Earth. (B) The atmosphere on Mars has an extremely low density. (C) The atmosphere on Mars lacks global circulation. (D) Mars has more glacial activity than Earth. Answer: (B) The atmosphere on Mars has an extremely low density.

NYSEDREGENTS_2007_8_5

Asexually produced offspring are genetically

1

Question: Asexually produced offspring are genetically (1) identical to the parent (2) different from the parent (3) different from each other (4) formed by two parents

Answer: (1) identical to the parent

Answer: (2) different from the parent

Question: Asexually produced offspring are genetically (1) identical to the parent (2) different from the parent (3) different from each other (4) formed by two parents Answer: (1) identical to the parent

Mercury_7161000

A teacher asks her students to examine titles of four scientific articles. Which titled article is specifically about a chemical change?

A

Question: A teacher asks her students to examine titles of four scientific articles. Which titled article is specifically about a chemical change? (A) How Baking Soda Reacts With Vinegar (B) How Rust Can Be Scraped off of Metal (C) How Metals Respond to Electrical Currents (D) How Elements Can Change Phase When Heated

Answer: (A) How Baking Soda Reacts With Vinegar

Answer: (D) How Elements Can Change Phase When Heated

Question: A teacher asks her students to examine titles of four scientific articles. Which titled article is specifically about a chemical change? (A) How Baking Soda Reacts With Vinegar (B) How Rust Can Be Scraped off of Metal (C) How Metals Respond to Electrical Currents (D) How Elements Can Change Phase When Heated Answer: (A) How Baking Soda Reacts With Vinegar

Mercury_7199098

Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

A

Question: Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars? (A) helium (B) nitrogen (C) oxygen (D) uranium

Answer: (A) helium

Answer: (C) oxygen

Question: Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars? (A) helium (B) nitrogen (C) oxygen (D) uranium Answer: (A) helium

Mercury_7187233

Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth?

A

Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms.

Answer: (A) Organic matter recycles from dead organisms.

Answer: (D) Rainwater drips off of living organisms.

Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms. Answer: (A) Organic matter recycles from dead organisms.

Mercury_416583

Conjugation in a paramecium differs from sexual reproduction in volvox because conjugation

A

Question: Conjugation in a paramecium differs from sexual reproduction in volvox because conjugation (A) results in two genetically identical cells. (B) requires specialized gonidia cells. (C) forms haploid male and female gametes. (D) takes place between specialized cells.

Answer: (A) results in two genetically identical cells.

Answer: (D) takes place between specialized cells.

Question: Conjugation in a paramecium differs from sexual reproduction in volvox because conjugation (A) results in two genetically identical cells. (B) requires specialized gonidia cells. (C) forms haploid male and female gametes. (D) takes place between specialized cells. Answer: (A) results in two genetically identical cells.

Mercury_175175

Which of the following helps to produce urine in humans and other mammals?

C

Question: Which of the following helps to produce urine in humans and other mammals? (A) bladder (B) urethra (C) kidneys (D) ureter

Answer: (C) kidneys

Answer: (A) bladder

Question: Which of the following helps to produce urine in humans and other mammals? (A) bladder (B) urethra (C) kidneys (D) ureter Answer: (C) kidneys

Mercury_7081183

A scientist looks at a graph that shows the percentages of humus, clay, and sand that make up a soil. If the scientist had the total weight of each material, instead of percentages, what type of graph would be best to illustrate the data?

A

Question: A scientist looks at a graph that shows the percentages of humus, clay, and sand that make up a soil. If the scientist had the total weight of each material, instead of percentages, what type of graph would be best to illustrate the data? (A) bar graph (B) scatterplot (C) circle graph (D) pictograph

Answer: (A) bar graph

Answer: (D) pictograph

Question: A scientist looks at a graph that shows the percentages of humus, clay, and sand that make up a soil. If the scientist had the total weight of each material, instead of percentages, what type of graph would be best to illustrate the data? (A) bar graph (B) scatterplot (C) circle graph (D) pictograph Answer: (A) bar graph

NYSEDREGENTS_2011_4_7

Which unit of measurement describes an object's length?

A

Question: Which unit of measurement describes an object's length? (A) meter (B) kilogram (C) liter (D) degree

Answer: (A) meter

Answer: (B) kilogram

Question: Which unit of measurement describes an object's length? (A) meter (B) kilogram (C) liter (D) degree Answer: (A) meter

Mercury_405466

Which organ is part of the respiratory system?

B

Question: Which organ is part of the respiratory system? (A) stomach (B) lungs (C) spinal cord (D) large intestines

Answer: (B) lungs

Answer: (A) stomach

Question: Which organ is part of the respiratory system? (A) stomach (B) lungs (C) spinal cord (D) large intestines Answer: (B) lungs

Mercury_7172410

The iron in iron-rich red soils may not be in a form that can be taken up by tree roots. As a result, leaves and needles may look yellow. Some trees release acids that convert iron in soil to a usable form. This change in soil chemistry is a type of which process?

B

Question: The iron in iron-rich red soils may not be in a form that can be taken up by tree roots. As a result, leaves and needles may look yellow. Some trees release acids that convert iron in soil to a usable form. This change in soil chemistry is a type of which process? (A) deposition (B) weathering (C) precipitation (D) photosynthesis

Answer: (B) weathering

Answer: (C) precipitation

Question: The iron in iron-rich red soils may not be in a form that can be taken up by tree roots. As a result, leaves and needles may look yellow. Some trees release acids that convert iron in soil to a usable form. This change in soil chemistry is a type of which process? (A) deposition (B) weathering (C) precipitation (D) photosynthesis Answer: (B) weathering

Mercury_7018165

The action that results when waves made in a pond strike the edges and bounce back is known as

D

Question: The action that results when waves made in a pond strike the edges and bounce back is known as (A) amplitude. (B) frequency. (C) vibration. (D) reflection.

Answer: (D) reflection.

Answer: (C) vibration.

Question: The action that results when waves made in a pond strike the edges and bounce back is known as (A) amplitude. (B) frequency. (C) vibration. (D) reflection. Answer: (D) reflection.

NYSEDREGENTS_2006_4_3

Sleet and hail are forms of

D

Question: Sleet and hail are forms of (A) clouds (B) energy (C) evaporation (D) precipitation

Answer: (D) precipitation

Answer: (A) clouds

Question: Sleet and hail are forms of (A) clouds (B) energy (C) evaporation (D) precipitation Answer: (D) precipitation

Mercury_177853

Astronomers have determined the surface temperature of stars by studying their colors. What color emission represents stars with the hottest temperatures?

A

Question: Astronomers have determined the surface temperature of stars by studying their colors. What color emission represents stars with the hottest temperatures? (A) blue (B) red (C) white (D) yellow

Answer: (A) blue

Answer: (C) white

Question: Astronomers have determined the surface temperature of stars by studying their colors. What color emission represents stars with the hottest temperatures? (A) blue (B) red (C) white (D) yellow Answer: (A) blue

MCAS_1999_8_30

Because sulfur cannot be decomposed by simple chemical methods into two or more different substances, it is classified as

A

Question: Because sulfur cannot be decomposed by simple chemical methods into two or more different substances, it is classified as (A) an element. (B) a compound. (C) a mixture. (D) a molecule.

Answer: (A) an element.

Answer: (B) a compound.

Question: Because sulfur cannot be decomposed by simple chemical methods into two or more different substances, it is classified as (A) an element. (B) a compound. (C) a mixture. (D) a molecule. Answer: (A) an element.

Mercury_SC_407435

The students watch ocean waves crash on a beach. Which statement describes what will most likely happen because of the waves?

B

Question: The students watch ocean waves crash on a beach. Which statement describes what will most likely happen because of the waves? (A) Grass on the beach will grow longer. (B) Sand from the beach will wash away. (C) Salt from the ocean will be left on the beach. (D) Currents in the ocean will become stronger.

Answer: (B) Sand from the beach will wash away.

Answer: (C) Salt from the ocean will be left on the beach.

Question: The students watch ocean waves crash on a beach. Which statement describes what will most likely happen because of the waves? (A) Grass on the beach will grow longer. (B) Sand from the beach will wash away. (C) Salt from the ocean will be left on the beach. (D) Currents in the ocean will become stronger. Answer: (B) Sand from the beach will wash away.

NYSEDREGENTS_2009_4_26

When plants and animals die, which organisms help return nutrients to the food chain?

A

Question: When plants and animals die, which organisms help return nutrients to the food chain? (A) decomposers (B) predators (C) prey (D) producers

Answer: (A) decomposers

Answer: (C) prey

Question: When plants and animals die, which organisms help return nutrients to the food chain? (A) decomposers (B) predators (C) prey (D) producers Answer: (A) decomposers

Mercury_SC_401664

Which object used in an experiment can safely be recycled?

A

Question: Which object used in an experiment can safely be recycled? (A) an aluminum can (B) a wet paper towel (C) salt spilled onto a tabletop (D) a broken graduated cylinder

Answer: (A) an aluminum can

Answer: (D) a broken graduated cylinder

Question: Which object used in an experiment can safely be recycled? (A) an aluminum can (B) a wet paper towel (C) salt spilled onto a tabletop (D) a broken graduated cylinder Answer: (A) an aluminum can

NYSEDREGENTS_2005_8_32

Evidence that living things have evolved over hundreds of millions of years can be found in

2

Question: Evidence that living things have evolved over hundreds of millions of years can be found in (1) particles in the air (2) rocks containing fossils (3) tree rings from recently logged trees (4) chemicals in human hair

Answer: (2) rocks containing fossils

Answer: (1) particles in the air

Question: Evidence that living things have evolved over hundreds of millions of years can be found in (1) particles in the air (2) rocks containing fossils (3) tree rings from recently logged trees (4) chemicals in human hair Answer: (2) rocks containing fossils

Mercury_415683

What causes the blue color of the sky?

D

Question: What causes the blue color of the sky? (A) emission of light by land and water surfaces (B) reflection of light from land and water surfaces (C) absorption of light by matter in the atmosphere (D) scattering of light by matter in the atmosphere

Answer: (D) scattering of light by matter in the atmosphere

Answer: (C) absorption of light by matter in the atmosphere

Question: What causes the blue color of the sky? (A) emission of light by land and water surfaces (B) reflection of light from land and water surfaces (C) absorption of light by matter in the atmosphere (D) scattering of light by matter in the atmosphere Answer: (D) scattering of light by matter in the atmosphere

NYSEDREGENTS_2004_8_15

As the population of small fish in a lake decreases, the population of large fish that depend on the small fish for food will

3

Question: As the population of small fish in a lake decreases, the population of large fish that depend on the small fish for food will (1) reproduce faster (2) begin to produce their own food (3) decrease in number (4) increase in number

Answer: (3) decrease in number

Answer: (4) increase in number

Question: As the population of small fish in a lake decreases, the population of large fish that depend on the small fish for food will (1) reproduce faster (2) begin to produce their own food (3) decrease in number (4) increase in number Answer: (3) decrease in number

Mercury_7183435

Living organisms require energy for biological processes. Chemical energy in a plant cell is

B

Question: Living organisms require energy for biological processes. Chemical energy in a plant cell is (A) produced in vacuoles. (B) converted from solar energy. (C) developed by centrioles. (D) stored as kinetic energy.

Answer: (B) converted from solar energy.

Answer: (D) stored as kinetic energy.

Question: Living organisms require energy for biological processes. Chemical energy in a plant cell is (A) produced in vacuoles. (B) converted from solar energy. (C) developed by centrioles. (D) stored as kinetic energy. Answer: (B) converted from solar energy.

Mercury_SC_401154

Pollen is necessary for a flowering plant to

D

Question: Pollen is necessary for a flowering plant to (A) grow. (B) blossom. (C) germinate. (D) reproduce.

Answer: (D) reproduce.

Answer: (A) grow.

Question: Pollen is necessary for a flowering plant to (A) grow. (B) blossom. (C) germinate. (D) reproduce. Answer: (D) reproduce.

Mercury_7217928

Which gas makes up the greatest percentage of Earth's atmosphere?

B

Question: Which gas makes up the greatest percentage of Earth's atmosphere? (A) argon (B) nitrogen (C) nitrous oxide (D) carbon dioxide

Answer: (B) nitrogen

Answer: (C) nitrous oxide

Question: Which gas makes up the greatest percentage of Earth's atmosphere? (A) argon (B) nitrogen (C) nitrous oxide (D) carbon dioxide Answer: (B) nitrogen

Mercury_7044310

Which is the best explanation of the term ecology?

D

Question: Which is the best explanation of the term ecology? (A) the study of the nonliving parts of the environment (B) the study of the living parts of the environment (C) the study of the protection and renewal of natural resources (D) the study of organisms and their interactions with the environment

Answer: (D) the study of organisms and their interactions with the environment

Answer: (B) the study of the living parts of the environment

Question: Which is the best explanation of the term ecology? (A) the study of the nonliving parts of the environment (B) the study of the living parts of the environment (C) the study of the protection and renewal of natural resources (D) the study of organisms and their interactions with the environment Answer: (D) the study of organisms and their interactions with the environment

Mercury_7026303

A student leaves a rock in the Sun on a bright afternoon. An hour after sunset, the weather is cool, but the rock still feels warm. The student has demonstrated a property of the rock resulting directly from which of the rock's other properties?

C

Question: A student leaves a rock in the Sun on a bright afternoon. An hour after sunset, the weather is cool, but the rock still feels warm. The student has demonstrated a property of the rock resulting directly from which of the rock's other properties? (A) its reactivity (B) its magnetism (C) its specific heat (D) its chemical energy

Answer: (C) its specific heat

Answer: (D) its chemical energy

Question: A student leaves a rock in the Sun on a bright afternoon. An hour after sunset, the weather is cool, but the rock still feels warm. The student has demonstrated a property of the rock resulting directly from which of the rock's other properties? (A) its reactivity (B) its magnetism (C) its specific heat (D) its chemical energy Answer: (C) its specific heat

Mercury_402058

Which characteristic is not an inherited trait?

D

Question: Which characteristic is not an inherited trait? (A) size (B) eye color (C) skin color (D) personality

Answer: (D) personality

Answer: (C) skin color

Question: Which characteristic is not an inherited trait? (A) size (B) eye color (C) skin color (D) personality Answer: (D) personality

TIMSS_2003_8_pg97

Eating leafy vegetables is important for human health. This is because leafy vegetables are a good source of which of the following?

C

Question: Eating leafy vegetables is important for human health. This is because leafy vegetables are a good source of which of the following? (A) protein (B) carbohydrates (C) minerals (D) fat

Answer: (C) minerals

Answer: (A) protein

Question: Eating leafy vegetables is important for human health. This is because leafy vegetables are a good source of which of the following? (A) protein (B) carbohydrates (C) minerals (D) fat Answer: (C) minerals

Mercury_180303

What is necessary to use on a telescope in order to photograph solar flares and solar prominences?

A

Question: What is necessary to use on a telescope in order to photograph solar flares and solar prominences? (A) a light filter (B) a chronograph (C) an electric drive (D) a series of mirrors

Answer: (A) a light filter

Answer: (D) a series of mirrors

Question: What is necessary to use on a telescope in order to photograph solar flares and solar prominences? (A) a light filter (B) a chronograph (C) an electric drive (D) a series of mirrors Answer: (A) a light filter

Mercury_7218645

Near Earth's equator, water generally exists naturally in the liquid and gas states. In which other part of Earth is water usually found naturally in only two states?

C

Question: Near Earth's equator, water generally exists naturally in the liquid and gas states. In which other part of Earth is water usually found naturally in only two states? (A) Indian Ocean (B) interior of Africa (C) South Pole (D) Tropic of Cancer

Answer: (C) South Pole

Answer: (A) Indian Ocean

Question: Near Earth's equator, water generally exists naturally in the liquid and gas states. In which other part of Earth is water usually found naturally in only two states? (A) Indian Ocean (B) interior of Africa (C) South Pole (D) Tropic of Cancer Answer: (C) South Pole

NYSEDREGENTS_2011_8_22

A cat jumps when startled by a loud noise. This is an example of an organism

1

Question: A cat jumps when startled by a loud noise. This is an example of an organism (1) sensing and responding to its external environment (2) sensing and responding to its internal environment (3) changing and controlling its external environment (4) changing and controlling its internal environment

Answer: (1) sensing and responding to its external environment

Answer: (2) sensing and responding to its internal environment

Question: A cat jumps when startled by a loud noise. This is an example of an organism (1) sensing and responding to its external environment (2) sensing and responding to its internal environment (3) changing and controlling its external environment (4) changing and controlling its internal environment Answer: (1) sensing and responding to its external environment

Mercury_SC_LBS10605

Which of the following materials would best slow the transfer of heat?

D

Question: Which of the following materials would best slow the transfer of heat? (A) aluminum (B) copper (C) glass (D) wood

Answer: (D) wood

Answer: (C) glass

Question: Which of the following materials would best slow the transfer of heat? (A) aluminum (B) copper (C) glass (D) wood Answer: (D) wood

NCEOGA_2013_5_22

What can cause a moving object to increase its speed in a forward direction?

B

Question: What can cause a moving object to increase its speed in a forward direction? (A) a force pushing on the object from the opposite direction (B) a force that continually acts on the object in the direction the object is moving (C) an increase in the mass of the object (D) a decrease in the mass of the object

Answer: (B) a force that continually acts on the object in the direction the object is moving

Answer: (A) a force pushing on the object from the opposite direction

Question: What can cause a moving object to increase its speed in a forward direction? (A) a force pushing on the object from the opposite direction (B) a force that continually acts on the object in the direction the object is moving (C) an increase in the mass of the object (D) a decrease in the mass of the object Answer: (B) a force that continually acts on the object in the direction the object is moving

NCEOGA_2013_8_27

In which oceanic zone do clams and crabs survive by burrowing in the sand?

B

Question: In which oceanic zone do clams and crabs survive by burrowing in the sand? (A) oceanic (B) intertidal (C) deep ocean (D) open ocean

Answer: (B) intertidal

Answer: (A) oceanic

Question: In which oceanic zone do clams and crabs survive by burrowing in the sand? (A) oceanic (B) intertidal (C) deep ocean (D) open ocean Answer: (B) intertidal

MCAS_1998_8_21

A manufacturing industry has asked to relocate its plant to your town. From an environmental perspective, which question is least important to ask before deciding whether the industry may move to your town?

D

Question: A manufacturing industry has asked to relocate its plant to your town. From an environmental perspective, which question is least important to ask before deciding whether the industry may move to your town? (A) How will the plant affect wildlife of the area? (B) What kinds of pollution will the plant produce? (C) What impact will the plant have on the population of the town? (D) What are the uses of the products that the plant will manufacture?

Answer: (D) What are the uses of the products that the plant will manufacture?

Answer: (C) What impact will the plant have on the population of the town?

Question: A manufacturing industry has asked to relocate its plant to your town. From an environmental perspective, which question is least important to ask before deciding whether the industry may move to your town? (A) How will the plant affect wildlife of the area? (B) What kinds of pollution will the plant produce? (C) What impact will the plant have on the population of the town? (D) What are the uses of the products that the plant will manufacture? Answer: (D) What are the uses of the products that the plant will manufacture?

Mercury_7206885

Some meteorologists use visual aids such as diagrams, maps, and charts when they present the weather to television viewers. How do different types of visual aids help the viewers understand complex weather phenomena?

D

Question: Some meteorologists use visual aids such as diagrams, maps, and charts when they present the weather to television viewers. How do different types of visual aids help the viewers understand complex weather phenomena? (A) by combining knowledge from past reports with new information (B) by providing information collected by other meteorologists (C) by checking the accuracy of each part of the weather report (D) by showing many components that impact the weather

Answer: (D) by showing many components that impact the weather

Answer: (B) by providing information collected by other meteorologists

Question: Some meteorologists use visual aids such as diagrams, maps, and charts when they present the weather to television viewers. How do different types of visual aids help the viewers understand complex weather phenomena? (A) by combining knowledge from past reports with new information (B) by providing information collected by other meteorologists (C) by checking the accuracy of each part of the weather report (D) by showing many components that impact the weather Answer: (D) by showing many components that impact the weather

Mercury_7071925

Which renewable energy resource possesses the greatest potential for providing renewable energy to meet the future needs of the southern United States?

C

Question: Which renewable energy resource possesses the greatest potential for providing renewable energy to meet the future needs of the southern United States? (A) tidal (B) water (C) solar (D) coal

Answer: (C) solar

Answer: (B) water

Question: Which renewable energy resource possesses the greatest potential for providing renewable energy to meet the future needs of the southern United States? (A) tidal (B) water (C) solar (D) coal Answer: (C) solar

Mercury_7011043

A student performs an experiment and the results are shown below: Before- Iron filings are brown, small, and magnetic: Copper sulfate crystals are blue, brittle, and not magnetic. After- The copper formed was reddish, solid, and not magnetic: Iron sulfide solution was colorless and not magnetic. Which statement supports that a chemical reaction took place?

B

Question: A student performs an experiment and the results are shown below: Before- Iron filings are brown, small, and magnetic: Copper sulfate crystals are blue, brittle, and not magnetic. After- The copper formed was reddish, solid, and not magnetic: Iron sulfide solution was colorless and not magnetic. Which statement supports that a chemical reaction took place? (A) Changes in color occurred. (B) A new substance was formed. (C) A physical change in the iron occurred. (D) The original substances were present after.

Answer: (B) A new substance was formed.

Answer: (D) The original substances were present after.

Question: A student performs an experiment and the results are shown below: Before- Iron filings are brown, small, and magnetic: Copper sulfate crystals are blue, brittle, and not magnetic. After- The copper formed was reddish, solid, and not magnetic: Iron sulfide solution was colorless and not magnetic. Which statement supports that a chemical reaction took place? (A) Changes in color occurred. (B) A new substance was formed. (C) A physical change in the iron occurred. (D) The original substances were present after. Answer: (B) A new substance was formed.

Mercury_7090545

In order for rocks to be classified as igneous, the rocks must

C

Question: In order for rocks to be classified as igneous, the rocks must (A) solidify at the surface of Earth. (B) be eroded and deposited in layers. (C) be formed from magma. (D) change form when pressure is applied.

Answer: (C) be formed from magma.

Answer: (A) solidify at the surface of Earth.

Question: In order for rocks to be classified as igneous, the rocks must (A) solidify at the surface of Earth. (B) be eroded and deposited in layers. (C) be formed from magma. (D) change form when pressure is applied. Answer: (C) be formed from magma.

Mercury_406548

Which of these is most likely the cause of a father and son having almost identical-sounding voices?

C

Question: Which of these is most likely the cause of a father and son having almost identical-sounding voices? (A) learned behaviors (B) environmental conditions (C) inherited characteristics (D) instinctive characteristics

Answer: (C) inherited characteristics

Answer: (D) instinctive characteristics

Question: Which of these is most likely the cause of a father and son having almost identical-sounding voices? (A) learned behaviors (B) environmental conditions (C) inherited characteristics (D) instinctive characteristics Answer: (C) inherited characteristics

Mercury_SC_400597

Frog eggs hatch into tadpoles, and then tadpoles gradually develop into frogs. This process is known as

D

Question: Frog eggs hatch into tadpoles, and then tadpoles gradually develop into frogs. This process is known as (A) adolescence. (B) crossbreeding. (C) regeneration. (D) metamorphosis.

Answer: (D) metamorphosis.

Answer: (C) regeneration.

Question: Frog eggs hatch into tadpoles, and then tadpoles gradually develop into frogs. This process is known as (A) adolescence. (B) crossbreeding. (C) regeneration. (D) metamorphosis. Answer: (D) metamorphosis.

MCAS_1999_4_30

Many people like to use microwave ovens rather than traditional ovens. The main reason for this is that microwave ovens

A

Question: Many people like to use microwave ovens rather than traditional ovens. The main reason for this is that microwave ovens (A) take less time to cook food than regular ovens do. (B) get hotter than regular ovens. (C) do not leave spattered grease or food on the inside. (D) cannot overcook food.

Answer: (A) take less time to cook food than regular ovens do.

Answer: (B) get hotter than regular ovens.

Question: Many people like to use microwave ovens rather than traditional ovens. The main reason for this is that microwave ovens (A) take less time to cook food than regular ovens do. (B) get hotter than regular ovens. (C) do not leave spattered grease or food on the inside. (D) cannot overcook food. Answer: (A) take less time to cook food than regular ovens do.

Mercury_7168280

When trees are removed from an area in a tropical rainforest, the area experiences an increase in soil erosion. Which statement best explains why removing the trees can lead to soil erosion?

B

Question: When trees are removed from an area in a tropical rainforest, the area experiences an increase in soil erosion. Which statement best explains why removing the trees can lead to soil erosion? (A) Less bedrock will be available to make soil. (B) There will be fewer roots to hold the soil in place. (C) The number of soil-eating insects in the area will increase. (D) The amount of solar radiation reaching the ground will increase.

Answer: (B) There will be fewer roots to hold the soil in place.

Answer: (A) Less bedrock will be available to make soil.

Question: When trees are removed from an area in a tropical rainforest, the area experiences an increase in soil erosion. Which statement best explains why removing the trees can lead to soil erosion? (A) Less bedrock will be available to make soil. (B) There will be fewer roots to hold the soil in place. (C) The number of soil-eating insects in the area will increase. (D) The amount of solar radiation reaching the ground will increase. Answer: (B) There will be fewer roots to hold the soil in place.

MEA_2013_5_6

What information is needed to calculate the speed of a car?

D

Question: What information is needed to calculate the speed of a car? (A) the road conditions and type of tires (B) the type of engine and the amount of gas used by the engine (C) the car length and distance traveled (D) the distance travel

Answer: (D) the distance travel

Answer: (C) the car length and distance traveled

Question: What information is needed to calculate the speed of a car? (A) the road conditions and type of tires (B) the type of engine and the amount of gas used by the engine (C) the car length and distance traveled (D) the distance travel Answer: (D) the distance travel

MCAS_2003_5_11

Freda always hangs her wet swimsuit outdoors after getting out of the swimming pool. Which of the following is least likely to affect the rate at which Freda's swimsuit dries?

C

Question: Freda always hangs her wet swimsuit outdoors after getting out of the swimming pool. Which of the following is least likely to affect the rate at which Freda's swimsuit dries? (A) the heat of the Sun (B) the speed of the wind (C) the temperature of the water in the pool (D) the amount of water vapor in the air

Answer: (C) the temperature of the water in the pool

Answer: (A) the heat of the Sun

Question: Freda always hangs her wet swimsuit outdoors after getting out of the swimming pool. Which of the following is least likely to affect the rate at which Freda's swimsuit dries? (A) the heat of the Sun (B) the speed of the wind (C) the temperature of the water in the pool (D) the amount of water vapor in the air Answer: (C) the temperature of the water in the pool

TIMSS_1995_8_I15

Maria collected the gas given off by a glowing piece of charcoal. The gas was then bubbled through a small amount of colorless limewater. Part of Maria's report stated, "After the gas was put into the jar, the limewater gradually changed to a milky white color." This statement is

A

Question: Maria collected the gas given off by a glowing piece of charcoal. The gas was then bubbled through a small amount of colorless limewater. Part of Maria's report stated, "After the gas was put into the jar, the limewater gradually changed to a milky white color." This statement is (A) an observation (B) a conclusion (C) a generalization (D) an assumption of the investigation (E) a hypothesis

Answer: (A) an observation

Answer: (B) a conclusion

Question: Maria collected the gas given off by a glowing piece of charcoal. The gas was then bubbled through a small amount of colorless limewater. Part of Maria's report stated, "After the gas was put into the jar, the limewater gradually changed to a milky white color." This statement is (A) an observation (B) a conclusion (C) a generalization (D) an assumption of the investigation (E) a hypothesis Answer: (A) an observation

NYSEDREGENTS_2009_4_27

Some butterflies live an average of two weeks. This period of time is called a life

B

Question: Some butterflies live an average of two weeks. This period of time is called a life (A) process (B) span (C) change (D) cycle

Answer: (B) span

Answer: (D) cycle

Question: Some butterflies live an average of two weeks. This period of time is called a life (A) process (B) span (C) change (D) cycle Answer: (B) span

MCAS_2003_8_34

Which two body systems work together to transport oxygen to the cells?

C

Question: Which two body systems work together to transport oxygen to the cells? (A) skeletal and respiratory (B) digestive and respiratory (C) respiratory and circulatory (D) respiratory and reproductive

Answer: (C) respiratory and circulatory

Answer: (A) skeletal and respiratory

Question: Which two body systems work together to transport oxygen to the cells? (A) skeletal and respiratory (B) digestive and respiratory (C) respiratory and circulatory (D) respiratory and reproductive Answer: (C) respiratory and circulatory

Mercury_7235655

Some localized layers of rock contain the element iridium. Iridium is most often found in space objects such as meteoroids and asteroids. The discovery of these iridium-containing layers has been matched to which phenomena in Earth's history?

B

Question: Some localized layers of rock contain the element iridium. Iridium is most often found in space objects such as meteoroids and asteroids. The discovery of these iridium-containing layers has been matched to which phenomena in Earth's history? (A) tectonic plate separations (B) mass species extinctions (C) orbital path changes (D) magnetic pole reversals

Answer: (B) mass species extinctions

Answer: (A) tectonic plate separations

Question: Some localized layers of rock contain the element iridium. Iridium is most often found in space objects such as meteoroids and asteroids. The discovery of these iridium-containing layers has been matched to which phenomena in Earth's history? (A) tectonic plate separations (B) mass species extinctions (C) orbital path changes (D) magnetic pole reversals Answer: (B) mass species extinctions

Mercury_SC_401830

Which of these converts electrical energy to light energy?

B

Question: Which of these converts electrical energy to light energy? (A) a star (B) a flashlight (C) a campfire (D) a tea kettle

Answer: (B) a flashlight

Answer: (C) a campfire

Question: Which of these converts electrical energy to light energy? (A) a star (B) a flashlight (C) a campfire (D) a tea kettle Answer: (B) a flashlight

Mercury_SC_401676

Darwin's theory that animal species can change over time was inspired by his research on which set of islands?

D

Question: Darwin's theory that animal species can change over time was inspired by his research on which set of islands? (A) the Philippine Islands (B) the Virgin Islands (C) the Hawaiian Islands (D) the Galapagos Islands

Answer: (D) the Galapagos Islands

Answer: (A) the Philippine Islands

Question: Darwin's theory that animal species can change over time was inspired by his research on which set of islands? (A) the Philippine Islands (B) the Virgin Islands (C) the Hawaiian Islands (D) the Galapagos Islands Answer: (D) the Galapagos Islands

Mercury_7186813

An athlete is running a race. The athlete's body needs energy. Which organelle(s) in the athlete's cells supply the energy for cellular functions?

B

Question: An athlete is running a race. The athlete's body needs energy. Which organelle(s) in the athlete's cells supply the energy for cellular functions? (A) Golgi apparatus (B) mitochondrion (C) ribosome (D) nucleus

Answer: (B) mitochondrion

Answer: (D) nucleus

Question: An athlete is running a race. The athlete's body needs energy. Which organelle(s) in the athlete's cells supply the energy for cellular functions? (A) Golgi apparatus (B) mitochondrion (C) ribosome (D) nucleus Answer: (B) mitochondrion

Mercury_SC_406712

Which of these would best help a scientist discover a new planet?

D

Question: Which of these would best help a scientist discover a new planet? (A) making a model of outer space (B) asking questions to other scientists (C) collecting information about planets (D) looking at the night sky with a telescope

Answer: (D) looking at the night sky with a telescope

Answer: (A) making a model of outer space

Question: Which of these would best help a scientist discover a new planet? (A) making a model of outer space (B) asking questions to other scientists (C) collecting information about planets (D) looking at the night sky with a telescope Answer: (D) looking at the night sky with a telescope

VASoL_2009_3_3

Which of these lists has only products that come from plants?

A

Question: Which of these lists has only products that come from plants? (A) Paper, spices, and fibers (B) Wool, lumber, and butter (C) Medicines, leather, and milk (D) Cotton, rubber, and eggs

Answer: (A) Paper, spices, and fibers

Answer: (D) Cotton, rubber, and eggs

Question: Which of these lists has only products that come from plants? (A) Paper, spices, and fibers (B) Wool, lumber, and butter (C) Medicines, leather, and milk (D) Cotton, rubber, and eggs Answer: (A) Paper, spices, and fibers