Rapid Changes

Front

What is a landslide?

Back

A sudden movement of loose rock and soil down a steep slope.

Front

What causes an earthquake?

Back

A sudden movement of part of Earth's crust.

Front

What should you do to prepare your home for a hurricane?

Back

Secure lawn furniture, board windows, and use sandbags around doors.

Front

What is a tsunami?

Back

A very large ocean wave caused by an underwater earthquake.

Front

What are examples of sudden changes to Earth's surface?

Back

Volcanoes, landslides, and earthquakes.

Front

What is the main difference between a landslide and an avalanche?

Back

A landslide occurs on land, while an avalanche occurs in snow.

Front

What is the purpose of sandbags during a hurricane?

Back

To prevent flooding by blocking water from entering.

Front

What natural disaster can cause a tsunami?

Back

An underwater earthquake.

Front

What is the term for gradual changes to Earth's surface?

Back

Weathering.

Front

What is the main cause of a landslide?

Back

Heavy rain or earthquakes that loosen soil and rocks.