1. Vocabulary Chapter 2: Lesson 2
Rock-forming mineral
granite
basalt
grain
texture
Igneous rock
Sedimentary rock
Metamorphic rock

2. Rock-forming mineral
Minerals that make up most of the Earth’s crust’s rocks
Ex. Quartz, feldspar, mica, and hornesblend

3. granite A light colored rock that has high silica content
Ex silica=silicone and oxygen

4. basalt
A dark colored rock that has a lower silica content than granite;
ex. too small of crystals that can’t be seen with the naked eye.

5. grains
Particles of minerals or other rocks
Ex. Give the rock texture

6. texture Look and feel of a rock’s surface
Ex. Size, shape, and pattern of grains

7. Igneous Rock Forms from cooling of magma or lava
Ex. Magma underground and lava on Earth’s surface

8. Sedimentary Rock
Forms when small particles of rocks and remains of plans and animals are pressed and cemented together
Ex. Layers buried below the surface

9. Metamorphic Rock
Forms when a rock is changed by heat and pressure or by chemical reactions
Ex. Deep underground