Through five lessons, students are introduced to all facets of the rock cycle. Topics include rock and mineral types, material stresses and weathering, geologic time and fossil formation, the Earth's crust and tectonic plates, and soil...

Explains the different ways that metamorphic rocks can form. Looks at high temperature, high pressure, and chemically active fluids. Discusses structures created in metamorphic rocks by different forces and the classifications based on...