Earth's Changing Surface

What is a volcano?

• A landform created when molten rock erupts through the earth's surface

• A sudden movement of the earth's crust

• The shaking of the earth's surface

• The breaking down of rocks by rain, snow, ice, or wind

What is molten rock?

• Rock that is so hot it becomes liquid

• The shaking of the earth's surface

• The breaking down of rocks by rain, snow, ice, or wind

• The outer layer of the earth's crust

What happens to the plants in the path of flowing lava?

• They are destroyed

• They grow quickly

• They become stronger

• They remain unaffected

What happens to the soil around a volcano after an eruption?

• It becomes very rich and new plants can grow quickly

• It becomes infertile and unable to support plant growth

• It becomes hard and rocky, making it difficult for plants to grow

• It remains unchanged

What causes an earthquake?

• A sudden movement of the earth's crust

• The eruption of a volcano

• The breaking down of rocks by rain, snow, ice, or wind

• The shaking of the earth's surface

What can happen when tectonic plates bump into each other?

• Mountains can be formed

• Volcanoes can erupt

• Landslides can occur

• Weathering can happen

What is weathering?

• The breaking down of rocks by rain, snow, ice, or wind

• A sudden movement of the earth's crust

• The shaking of the earth's surface

• The formation of mountains

What is erosion?

• The carrying away of broken down rock by rain, snow, ice, or wind

• The breaking down of rocks by rain, snow, ice, or wind

• The shaking of the earth's surface

• The formation of mountains

What can erosion of rocks over a long period of time create?

• Caves

• Volcanoes

• Mountains

• Landslides

What can erosion of soil cause?

• Damage to buildings and homes

• Formation of new plants

• Formation of mountains

• Formation of caves