Unit 1 Lesson 3 How do environments change?

Which of these is an example of a SLOW change to an environment?

• An earthquake makes a shift in the ground.

• A landslide shakes soil and rock loose.

• A wildfire kills many trees in a forest.

• A river carries away rock to form a canyon.

A group of living things of the same kind is called

• a species

• a predator

• a population

• an organsim

True or False? A landslide is an example of a SLOW environmental change.

• True

• False

True or False? Building a dam will not change the environment.

• True

• False

True or False? Scientist and engineers work together to build dams which prevent floods.

• True

• False

______________________ is an example of a SLOW environmental change.

• A canyon forming

• A volcano erupting

• A wildfire burning

• A landslide happening

A natural resource is

• a useful material that is made by humans

• a slow change that happens in the environment

• a useful material that comes from the environment

• an organism that causes problems in the environment

_______________ is an example of a VERY FAST environmental change.

• An earthquake

• An invasive species

• Resource removal

• Rocks wearing away land

Which is an example of a natural resource?

• air

• trees

• water

• all of the above

Why are invasive species dangerous?

• They grow quickly.

• They have fewer enemies.

• They can crowd local plants.

• All of the above.