Texas Science Chapter 6: Lesson 2 Rapid Changes on Earth

Front

What is lava?

Back

Melted rock that is hot and hardens as it cools.

Front

What happens during a volcanic eruption?

Back

Lava, ash, and gases are forced out of the volcano.

Front

What is one way engineers help prevent landslides?

Back

They use underground pipes to drain water away from soil.

Front

What is a landslide?

Back

Sudden movement of rock or soil from high to low ground.

Front

What can trigger a landslide?

Back

Heavy rain or an earthquake.

Front

What is a volcano?

Back

An opening in the Earth's surface where lava, ash, and gases can escape.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface; lava is magma that has reached the surface.

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by wind or water.

Front

What is a natural disaster?

Back

A sudden event caused by environmental factors that results in significant damage or loss.

Front

What is an earthquake?

Back

A shaking of the ground caused by the movement of tectonic plates.