How did scientists discover what lies beneath the earth's surface? Dig a hole? X-ray vision? Guide your class through the types of seismic waves and how these waves helped shed light on Earth's many layers. The included resources provide...

Young seismologists learn more about plate tectonics with a set of pre-lab, lab, and post-lab lessons plans on earthquakes. After exploring how waves travel through various materials, sixth graders record their observations and...