- There is over 1500 active volcanoes in the world and with heat energy. The two countries that have geothermal energy are
- Japan had a unexpected eruption and it killed 40 people. It has about 100 volcanoes.
- The largest group of geothermal power plants in the world is located at The Geysers, a geothermal field in California, United States. As of 2004, five countries (El Salvador, Kenya, the Philippines, Iceland, and Costa Rica) generate more than 15% of their electricity from geothermal sources.
- Yellowstone national park is a volcano itself.
- A volcano is a cone shape.
- A volcano has magma inside of it and when it erupts it becomes lava.
- Mt. Saint Hellens is in Washington and is a regular volcano.
- The Yellowstone volcano erupted 2.1 million years ago.
- Yellowstone was the first national park.
- The magma chamber under the volcano the crust is on the outside.
- Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet (20%) and from radioactive decay of minerals (80%).
- when the plates collide a lot of things can happen.
- Mountains can form, erupting volcanoes, and earthquakes.
- The magma can be in the mantle or crust.
- It takes four thousand years to to go down into the center of the earth and then for it to come back again.
- In the eastern hemisphere there is a lot of volcanic activity.
- We are always moving no matter what we think.
- In one year you move the amount of your thumbnail.
- Mountains are always growing.
- People in Hawaii are moving because there is a volcano that is going to erupt in a just a little bit.
- Magma gets pushed up and once its up enough it will erupt. There is an earthquake in Yellowstone everyday.
- Rocks make up a volcano.
- A volcano can erupt fill again and erupt again just in a couple of seconds.
- Last time Yellowstone erupted was 640000 years ago.
- There is only two totonic plates.
- A pom pae situation will not happen in Hawaii.
- When rocks come out of a volcano it is called ingeous rocks.
- Indians used obsidian to use arrows.
- Some rocks that erupt can be more violent then others.
- basalt isn't very soft. It doesn't hold pressure within the volcano.
- Some rocks good be 2.1 million years old.
- Rocks get holes from burning gases flying when its flying through the air.
- Some Granite rocks are 2.1 billion years old. That is half the time the earth has lived.
- obsidian rock is always black.
- Don't stick your hand in boiling water.
- Old Faithful can reach a height of 180 feet.
- There are four different types of volcanoes.
- obsidian rock came from an obsidian cliff.
- Indians made knifes out of obsidian.