Bill Nye Volcanoes

Front

What can volcanoes carve in a matter of hours?

Back

Volcanoes can carve landforms such as lakes and valleys.

Front

How hot can lava get?

Back

Lava can reach temperatures of over 1000 degrees Celsius.

Front

Where were the Hawaiian Islands formed?

Back

The Hawaiian Islands were formed by volcanoes that are not located at a plate boundary.

Front

What type of volcano is formed by hot lava that flows down the sides slowly?

Back

A shield volcano.

Front

Why do volcanoes erupt?

Back

Volcanoes erupt because there are gases trapped in magma deep inside the earth that expand and explode when heated.

Front

What is magma?

Back

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

Front

What is the difference between magma and lava?

Back

Magma is found underground, while lava is magma that has reached the Earth's surface.

Front

What are the two main types of volcanic eruptions?

Back

Explosive eruptions and effusive eruptions.

Front

What is a cinder cone volcano?

Back

A cinder cone volcano is a steep, conical hill formed from volcanic ash and small rocks.

Front

What is a stratovolcano?

Back

A stratovolcano is a large, steep volcano built up by many layers of hardened lava and tephra.