When a volcano erupts hot gases and liquid rock come up to the surface from inside the earth. The material sometimes slides down mountains as lava or is hurled into the air as ash or small rocks. Volcanoes often destroy the land around them completely. Gases from eruptions can keep sunlight from reaching the earth and darken the sky for years. Volcanoes also build up new islands and mountains and make the soil a good place for crops to grow.
Contents : 11 pages
-Where volcanoes are located
-Types of volcanoes
-Volcanic activity around the world
-Ring of Fire
The sample contains a complete non-printable preview of the whole module (text- and worksheets)