| __ | 1. | air mass | | A. | large volume of air with the same temperature and humidity t |
| __ | 2. | air pressure | | B. | a crack in the Earth’s crust. |
| __ | 3. | anemometer | | C. | is the measurement of how much the air is pushing down on |
| __ | 4. | barometer | | D. | a tool that tells how fast the wind blows. |
| __ | 5. | cold front | | E. | measures air pressure. |
| __ | 6. | earthquake | | F. | when a cold air mass bumps up against a warm air mass causin |
| __ | 7. | erosion | | G. | sudden movements that happen along a fault. |
| __ | 8. | fault | | H. | process that picks up and moves weathered rocks. |
| __ | 9. | flood | | I. | the rising and overflowing of water. |
| __ | 10. | front | | J. | a place where different air masses meet. |
| __ | 11. | fuel | | A. | material burned to get energy. |
| __ | 12. | landslide | | B. | magna that comes out of the earth. |
| __ | 13. | lava | | C. | the rocks on a hill suddenly slide down the hill. |
| __ | 14. | magma | | D. | a tool for measuring temperature. |
| __ | 15. | rain gauge | | E. | melted rock beneath earth’s service. |
| __ | 16. | resource | | F. | mountains formed by hot melted rock that purchases. |
| __ | 17. | thermometer | | G. | an instrument for measuring the amount of fallen rain. |
| __ | 18. | volcano | | H. | earth material that living things use. |
| __ | 19. | warm front | | I. | a warm air mass meets and slowly rides up over a cold air ma |
| __ | 20. | weathering | | J. | process that breaks rocks into smaller pieces. |