- There over 15 hundred active volcanoes in the world
- 2 countries use geothermal energy
- 100 volcanoes in Japan
- Iceland and New Zealand use geothermal energy
- Inside a volcano is magma outside it is lava.
- Yellowstone is a supervolcano
- Mt. St. Helens
- The magma chamber is either in the mantel or the crust
- There are 7 tectonic plates
- Tectonic plates make earthquakes and volcanic eruptions
- It takes 4 thousand years for water to perculate into the earth and then come back up
- The pacific ring of fire is where the most volcanic eruptions are
- The Pacific plate sinks Same with the Australian plate
- Obsisian is lava that is turned into rock really fast
- Magma can blow off the top of the volcano it creates a caldera
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June 2015
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