Earth's Changing Land

What landform is this?

• sand dune

• island

• prairie

• canyon

Which force makes sand dunes?

• water

• gravity

• ice

• wind

What is erosion?

• the force that pulls objects toward each other

• to drop

• the wearing away of rock

• the movement of rock and soil from one place to another

What is gravity?

• the force that pulls objects toward each other

• a natural feature of Earth's surface

• the wearing away of rock

What is a landform?

• to drop

• the wearing away of rock

• a natural feature of Earth's surface

What does deposit mean?

• to drop

• the wearing away of rock

• a natural feature of Earth's surface

What is weathering?

• to drop

• the rubbing away of rock

• a natural feature of Earth's surface

Which of these forces causes weathering and erosion?

• water

• ice

• wind

• all of the above

Which one of these causes sinkholes?

• dunes

• caves

• valleys

• mountains

Which landform is this?

• cave

• valley

• sand dune

• sinkhole