1

Crust

Earth’s outermost layer

2

Mantle

Layer beneath the crust made of hot rock

3

Core

Center of Earth composed mainly of iron and nickel

4

Plate Tectonics

Theory that Earth's crust is divided into moving plates

5

Earthquake

Sudden shaking caused by movement of tectonic plates

6

Volcano

Opening where magma erupts to the surface

7

Erosion

Process of moving soil or rock by wind or water

8

Weather

Short-term atmospheric conditions

9

Climate

Average weather patterns over long periods

10

Fossil

Preserved remains of ancient organisms

11

Sedimentary Rock

Rock formed from compressed sediments

12

Igneous Rock

Rock formed from cooled magma or lava

Earth Science

Terms 12