Unit 2 - Mystery 1 & 2

Front

What are volcanoes?

Back

Volcanoes are openings in the Earth's surface where molten rock, ash, and gases can escape from below the surface.

Front

Do volcanoes pop up in groups or clusters?

Back

Yes, they always do.

Front

What is lava?

Back

Lava is molten rock that erupts from a volcano.

Front

Why might you find lava rocks far away from a volcano?

Back

They were brought there by a person or animal, or there once was a volcano in that location.

Front

What is basalt?

Back

Basalt is a type of hardened lava rock.

Front

What is magma?

Back

Magma is molten rock that is found beneath the Earth's surface.

Front

What is a cone volcano?

Back

A cone volcano is a type of volcano that is formed by thick lava.

Front

What causes cone volcanoes to explode?

Back

Cone volcanoes explode because the thick lava forms a crust and pressure from bubbles builds.

Front

What is a shield volcano?

Back

A shield volcano is a type of volcano that is formed by thin lava that flows easily.

Front

What is the difference between lava and magma?

Back

Lava is molten rock that erupts from a volcano, while magma is molten rock that is still beneath the Earth's surface.