Earth's Slow Changes

Which of the following is FALSE?

• It is possible for the valleys of the earth to grow deeper

• Mountains eventually break down.

• Canyons can grow wider

• The shape and look of the Earth's surface has always been the same

What do you call the broken pieces of the Earth's surface that the wind and water move and carry away?

• Soil

• Sediments

• Ice

• Rain

True or False? Weathering and erosion can happen at the same time.

• True

• False

Draw sediment being carried away by water.

What do you call the process when the wind loosen small bits of dirt and dust, or when rain wears down a mountain drip by drip?

• Weathering

• Sediment

• Erosion

• Deposition

What do you call the process where wind and water move sediments?

• Weathering

• Erosion

• Flooding

• Earthquakes

True or False? Running water that carries sediments can carve hills and cut into mountains. This is how canyons are made.

• False

• True

What do you call a very large sheet of ice and snow that can move down a slope and cut nearby rocks?

• Ice Rock

• Snow

• Glacier

True or False? Aside from water wearing out rocks and wind loosening rocks, weathering can be caused by frozen ice, too.

• False

• True

How can people speed up erosion?

• By cutting down forests, landslides can occur.

• By planting trees, soil is moved.