- There is over 15,000 active volcanoes in the world.
- Japan has more then 100 volcanoes and one recently blew and killed almost 400 people.
- Geothermal energy is an energy of heat coming from the earth.
- Hydrothermal energy is an action of hot water coming from the earth's crust.
- A volcano is a rupture in the earth's crust allowing hot gasses lava and ash to escape.
- Mount St.Helon is a volcano in Washington.
- The magma chamber is in the crust and a big magma chamber is in the crust and the mantel.
- A tintonic plate is a slab of the earths crust.
- Snow and rain slowly percolate through layers permeable rock riddled with cracks, water is then heated to high temperature forced to the surface through fracture.
- An ash cloud can cause the engines on a plane stop.
- Obsidian is lava that dries very quick and turns into a rock.
- Basalt is a type of dried lava from Hawaii it also comes from the moon.
- Holes in a rock happened because of hot gasses escaping through the air.
- Rhyolite cools very slowly.
- Volcanoes give us habitats beautiful sites.
- Volcanoes on the other hand can destroy a city and life.
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