| A | B |
|---|
| air pressure | 1. the force caused by the weight of the air on an object due to the earth's gravitational attraction |
| barometer | 2. the device used to measure air pressure |
| chemical weathering | 3. when new substances are formed by chemical reaction that occurs when rocks and minerals interact with carbon dioxide and oxygen |
| climate zone | 4. one of the three areas the earth is divided into based on temperature and distance from the equator |
| continental crust | 5. the crust that is made up of organic materials as well as materials from plants and animals |
| crust | 6. surface of the earth |
| humidity | 7. the amount of moisture in the air |
| mechanical weathering | 8. when larger rocks break into smaller rocks |
| precipitation | 9. any form of water that falls to the earth |
| relative humidity | 10. the amount of water in the air compared with the air's with the air's ability to hold water vapor |
| galaxy | 11. known as the Milky Way |
| solar system | 12. group of bodies that are held together or served by a sun |
| soil | 12. composed of the earth's surface-sand, silt, clay,organic matter |
| atmoshpere | 14. air that surrounds the earth |
| revolution | 15. movement of the earth in space around the sun |
