Madison's and Grace's Volcanoes

By Madison and Grace

Interesting Facts about Volcanoes

A hot spot is a region directly in the middle of a tectonic plate. Another fact is that silicone makes up 99% of Earth's rocks. Inside the volcano lava can be as hot as 700 degrees Celsius. When the lava erupts it's speed can be up to 100 kilometers a hour.

Before a volcano erupts it expands out.

Defined Words That Have To Do With Volcanoes

Shield volcanoes are made from free flow lava, low and dome shaped. Cinder cone volcanoes are formed by magma that is sticky. An atoll is a circular coral reef that grows on top a volcano that is underwater. A caldera is a large crater that is made when a volcano's top collapses.