Rapid Changes

The molten rock BENEATH Earth's surface is called...

• volcano
• crust
• magma
• epicenter

Sudden movement of loose rock and soil down a steep slope is called a...

• avalanche
• landslide
• earthquake
• creep

A very large ocean wave that is caused by an underwater earthquake is a/an...

• flood
• tsunami
• rockslide
• weathering

A/An _______________ is a sudden movement of part of Earth's crust.

• earthquake
• volcano
• tsunami
• landslide

A/An ________________ is an opening in Earth's crust through which hot ash, gases, and molten rock escape.

• volcano
• fault 
• earthquake
• creep

Molten rock that reaches Earth's surface is called...

• smoke
• lava
• ash
• magma

What is the EFFECT of a landslide on hillsides where people live?
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• sudden movement
• wildfires
• heavy rain
• damaged houses

Volcanoes can affect Earth's surface...

• only at the foot of the volcano
• at the base of the volcano
• for hundreds of miles around
• on the north side of the volcano

Volcanoes, landslides, and earthquakes are examples of __________ changes to Earth's surface.

• sudden
• slow
• gradual
• slight

Which describes an earthquake that is very strong to violent?

• not felt by most people
• small objects move
• trees are shaken
• cracks are in the ground