Did you know there are 20 volcanoes erupting at any given time? Pupils look at various igneous rocks, read local geologic maps, and determine if their area has a history of volcanic activity. A reading passage and analysis questions...

Young geologists piece together the puzzle of plate tectonics in an earth science lesson. Given a physical map of the world, they search for land formations that indicate the location of different types of plate boundaries.

A labeled diagram of three types of volcanoes: cinder cone, shield, and stratovolcano.

A concise explanation of the three types of volcanoes recognized by geologists.