Volcanoes
By Grace Watson-Martin
Created with CAST's UDL Book Builder
Created with CAST's UDL Book Builder
Created with CAST's UDL Book Builder
Created with CAST's UDL Book Builder
Magma collects in large pockets called magma chambers. As magma leaves the chamber, it moves up a tunnel or central vent. Sometimes, magma escapes from the central vent and erupts from side vents. Most magma, however, erupts at the top of the volcano through a bowl-shaped center.
Created with CAST's UDL Book Builder