Volcanoes: McGraw Hill Unit 4 Week 4 Grade 2

Front

What is a volcano?

Back

A volcano is an opening in the Earth's surface where molten rock, ash, and gases can escape from below the surface.

Front

What is lava?

Back

Lava is molten rock that comes out of a volcano when it erupts.

Front

What is volcanic ash?

Back

Volcanic ash is tiny pieces of rock and glass that are blown into the air during a volcanic eruption.

Front

What is the Ring of Fire?

Back

The Ring of Fire is a horseshoe-shaped area in the Pacific Ocean where many earthquakes and volcanoes occur.

Front

How do volcanoes help create new land?

Back

When a volcano erupts, it can create new mountains and islands from the lava that cools and hardens.

Front

What does it mean when we say something is solid?

Back

Solid means it is firm and hard, like a rock.

Front

How can volcanic ash be good for plants?

Back

Volcanic ash contains minerals that can help plants grow.

Front

What happens during a volcanic eruption?

Back

During a volcanic eruption, lava, ash, and gases are released from the volcano.

Front

What is magma?

Back

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

Front

What can happen to the land after a volcano erupts?

Back

The land can change shape, new mountains can form, and the soil can become richer due to volcanic ash.