lesson 2 & 6

lesson 2 & 6

vocab choice board

Rock Forming Minerals

Rocks that form Earth's Crust are rock forming minerals, these minerals also form granite

Granite

light colored rock that has high silica content

Basalt

dark colored rock that has low silica content

grains

Rocks that are made by particles of minerals are called grains.

Texture

the look and feel of a rock's surface

Igneous rocks

rocks that form from the heating and cooling of magma or lava

Sedimentary rocks

forms when small particles of rocks or the remains of plants and animals are pressed and cemented together

Metamorphic rock

forms when a rock is changed by heat or pressure

rock cycle

a series of processes that occur on Earth's surface and in the crust and mantle that slowly change rocks from one kind to another.