U2 M3 L2 Weathering and Erosion

What causes weathering?

• Wind and water

• Trees and plants

• Animals only

• Cars and trucks

What is weathering?

• Carrying rocks to a new place

• Breaking down rocks into smaller pieces

• Melting ice

• Growing plants

What is erosion?

• When rocks grow bigger

• When sand turns to rock

• When soil and rocks are carried away

• When water stops moving

What can glaciers do to rocks?

• Melt them

• Make them disappear

• Turn them into water

• Break and carry them away

Which natural force helps glaciers move?

• Wind

• Gravity

• Animals

• Volcanoes

Choose three materials:
Which material can cause weathering by blowing against rocks?

• Animals

• Sand

• Water

• Wind

How does water in rivers change rocks?

• By breaking and carrying pieces of rock away

• By freezing them

• By making them larger

• By painting them

What happens when water carries soil and rocks away?

• Freezing

• Melting

• Weathering

• Erosion

Erosion is when rocks are broken into smaller pieces.

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Weathering changes the size and shape of rocks over time.

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