Heat and pressure change the rocks into sedimentary rocks.

graphite is a metamorphic rock can change into Diamond under the pressure.

Rocks form when layers of sediments settle on top of

one another and harden.

1. When the magma reaches the earth’s surface, the molten rock is called

Minerals that break along smooth, flat surfaces have:

When you rub one mineral directly against another, you will be testing crystals shape.

Rocks are made of:

Most of Earth’s rocks are made up of a small number of Minerals

If magma cooled under Earth’s surface, it cools Quickly

Rocks are constantly formed and destroyed.

is the way the surface of a mineral reflects light.