Diagram the uppermost mantle and crust. Label the density of the layers in grams per cubic centimetre. What two types of crust were described in the text in terms of rock composition? What is a...

Diagram the uppermost mantle and crust. Label the density of the layers in grams per cubic centimetre. What two types of crust were described in the text in terms of rock composition?

What is a mineral? A mineral family? Name the most common minerals on Earth. What is a rock? Describe igneous processes. What is the difference between intrusive and extrusive types of igneous rocks?