Natural Hazards Lesson 2

Front

What is lava?

Back

Lava is molten rock that flows from a volcano when magma reaches the Earth's surface.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

Front

True or False: Lava is melted rock from parts of the mantle and crust.

Back

False

Front

True or False: When magma flows onto land, it is called lava.

Back

True

Front

What forms over warm ocean water and can cause strong winds and heavy rain?

Back

A hurricane.

Front

What is the calm area at the center of a hurricane called?

Back

The eye.

Front

True or False: A hurricane forms over land when warm air rises into a thunderstorm.

Back

False

Front

What begins as an area of low pressure over warm ocean water?

Back

A hurricane.

Front

What is a tornado?

Back

A tornado is a rapidly rotating column of air that extends from a thunderstorm to the ground.

Front

What is an avalanche?

Back

An avalanche is a large mass of snow, ice, and rocks that falls down a mountainside.