Volcanoes

1. The name of the Roman god of fire, after which volcanoes are named.
5. A machine in space that takes pictures of the Earth's surface.
6. The outer shell of the Earth.
11. Lumps of lava that cool into long, twisted shapes.
13. A scientist who studies volcanoes.
14. A sign on a volcano's slope that could mean melted rock is pushing up inside.
15. A word meaning "dead," used to describe a volcano that will never erupt again.

2. Melted rock that has erupted from a volcano.
3. A type of hot spring found around underwater volcanoes that forms tall chimneys.
4. A spring that shoots a jet of steaming hot water out of the ground.
7. The extremely hot center of the Earth.
8. Water that flows out of the ground.
9. The layer of hot rock underneath the Earth's crust.
10. The name of the volcano in Italy that erupted 2,000 years ago and buried Pompeii.
12. Lumps of lava that are jagged rocks.