KGMK+3.1

=Volcanoes and Plate Tectonics=

Vocabulary

 * volcano**: volcanoes are weak spots in Earth's crust where molten material (magma) comes out to the surface
 * magma**: molten material of rock and it forms substances like gases and water from the mantle
 * lava**: when magma has reached the surface it is now called lava
 * Ring** **of Fire**: formed by a lot of volcanoes that rim the Pacific Ocean
 * island arc**: when the results create a string of islands
 * hot spot**: area where inside the mantle melts through the crust

What Is a Volcano?

 * volcano eruptions are one of the most dangerous events on Earth
 * lava that may be released during volcanic activity it starts to build up the Earth's surface
 * Earth's activity is a constructive force
 * it always adds new rock to the existing area, this may also form new islands

Location of Volcanoes

 * volcanoes like to form in many places
 * they may even form underwater