Which can cause a harmful change to an ecosystem?

• A. conservation

• B. pollution

• C. recycling

• D. reusing

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Which of the following is an example of water conservation?

• A. setting aside land to make land refuges

• B. turning off lights when leaving the room

• C. turning off the tap while brushing teeth

• D. watering the lawn once a day

People cut down trees in a forest to build homes. Which is most likely to happen to the animals that live in that forest habitat?

• A. They will leave to find a new habitat.

• B. They will wait until the habitat grows back.

• C. They will find what they need in the habitat.

• D. They will learn new ways to live in the habitat.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

A group of people camp in the woods. Which activity would be harmful to organisms living in the woods?

• A. cutting down a tree to burn in a campfire

• B. keeping trash off the land and away from the river

• C. leaving the area exactly as they found it

• D. using a rowboat in the river

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

A scientist was studying frogs in a pond ecosystem. The scientist observed a four-wheel vehicle driving through a pond where a frog population lives. How will this vehicle most likely affect the frog population?

• A. The frog population will double because of it.

• B. The frog population will increase because of it.

• C. The frog population will decrease because of it.

• D. The frog population will not change because of it.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following activities can cause pollution?

• A. mining fossil fuels

• B. conserving water

• C. picking up trash

• D. planting trees

Tags

NGSS.MS-ESS3-3

Which picture shows an example of conservation?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-5

Jean is concerned about pollution in her town. What is one way to help reduce pollution in Jean’s town?

• A. adding more recycling bins

• B. adding more trash cans

• C. building more factories

• D. removing nonnative plants

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

People’s actions can change an ecosystem. Which of the following changes is helpful to an ecosystem?

• A. letting large herds of animals graze on farmland

• B. introducing nonnative plants into an area

• C. setting aside land areas as animal refuges

• D. clearing forests to make lumber

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

These animals are covered with oil that entered their habitats. Which event most likely caused harmed to this ecosystem?

• A. Natural ground oil seeped up into the water.

• B. Oil spilled on land and flowed into the water.

• C. Oil spilled from off-shore drilling or a leaked from a ship.

• D. Animals wandered into an oil well and brought oil back to their habitats.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4