Volcanic Activity
An Amazing Earth Shaper
What is a Volcano?
A volcano is a cone-shaped mountain. Molten rock, called magma, and gas build up inside until the pressure is so great that it explodes. Magma is called lava after it is released from the volcano. The volcano sends up lava, ash and rock. Ash is released into the atmosphere, and can come down with rain on another part of the world.
Some Articles to Read
Volcanoes (on Weather WizKids)
What is a Volcano? (on Wonderopolis)--We will watch a video on this site.