Earth Changes

Earth's shape is a sphere. What else is a sphere?

• A shoe box

• A basketball

• A diamond

The largest bodies of land on Earth are _____________.

• oceans

• space

• continents

Earth's surface is always changing.

• True

• False

What causes most earthquakes?

• Volcanoes are erupting on land.

• Water pushes toward the beach and moves land.

• Earth's plates move under the surface.

What happens to lava when it cools?

• It hardens into rock.

• It melts liquid.

• It breaks into small pieces.

Which forces cause erosion?

• fire and rock

• wind and fire

• wind and water

How many continents are on Earth today?

• one

• seven

• nine