- 1500 active volcanoes.
- Harness thermal activity to use for our needs.
- Japan volcano went off without notice. Not normal.
- Yellow stone was a volcano
- Magma gets pushed up and when it goes to top its lava.
- Mount Saint Helen is in Washington. Normal volcano.
- Yellowstone is super volcano
- Magma chambers can be in crust or mantle
- Yellowstone magma chamber is twice as big as we thought.
- Hot spot like in Iceland. Yellow stone to.
- Snow and rain go down get heated and go up again.
- Pacific ring of fire is where most volcanoes go off.
- Pacific plate goes under continental
- Collision can cause earthquakes volcanic activities and mountains
- Earthquake could make landslide on volcano
- They could fill up in a day 60,000 that afternoon
- Mount Savouse was Pompeii mountain. Super volcano.
- A ash cloud can stop air traffic.
- Obsidian came out as lava cool very fast and turned into obsidian.
- Basalt is on the moon and softer.
- Holes in rock made by hot gasses escaping while flying in the air. It was lava.
- Granite came from a volcano and came from 2 and a half billion years ago.
- Hot springs can be 200 degrees and other things.
- Underwater volcanoes make islands.
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