Volcanoes

Definition

100

What is an opening in the Earth's crust?

What is a volcano?

200

What is inside volcanoes that can reach 10,000 degrees F?

What is lava?

Eruption

100

Are volcanoes predictable or unpredictable?

What is unpredictable?

200

What comes out of a volcano?

What is ash, gas, and molten rock?

Formation

100

What do volcanoes form over?

What is a hot spot?

Lava

100

What can be fast or slow moving?

What is lava?

200

What can fast lava form?

What is a lava flow?