| A | B |
|---|
| Aquifer | Underground stream or pool |
| Atmosphere | air that surrounds the earth |
| continental crust | crust on land |
| continental drift | seperation of land masses |
| crust | surface of the earth |
| earthquake | shaking of the ground |
| earth science | involves earth and the area around it |
| equinox | when the sun is directly over the equator |
| evolution | process of growth, development, and change |
| ground water | water beneath the surface of the earth |
| hydrosphere | consists of all of the water on earth |
| landform | shapes on the earth's surface |
| oceanic crust | crust that is beneath the ocean |
| outer space | boundless area beyond the earth |
| ozone layer | filters out harmful radiation from the sun |
