Unit 6 Changes to the Earth

All changes to Earth happen very slowly over a very long period of time.

• True

• False

The landform that is made by rivers cutting through rock, scraping away sediments.

• Sand dune

• Delta

• Mesa

• Canyon

The landform that forms at the mouth of a river, shaped like a fan.

• Delta

• Mesa

• Fjord

• Rock arch

The landform that is constantly changed by the wind, which blows sediment into a mountain of sand.

• Sea arch

• Delta

• Sand dune

• Ice wedging

The landform created by wind blasting rocks, creating holes in them.

• Mesa

• Rock arch

• Fjord

• Canyon

There are four main types of volcanoes.

• True

• False

Molten rock that is beneath the Earth’s surface.

• Magma

• Lava

Composite volcanoes are also known as

• Cinder Cones

• Shield volcanoes

• Stratovolcanoes

• Magma

These volcanoes form when thick lava oozes from the ground. They are slow but potentially dangerous eruptions.

• Lava Domes

• Cinder Cones

• Composite

• Shield

Shield volcanoes

• Have steep slopes.

• Have gentle slopes.

• Erupt with tremendous force.

• Are the simplest type of volcano.