Down
| 1. | an area of land where many tall trees grow |
| 3. | sources of power that come from light or the sun (2 words) |
| 4. | when the sun's heat is trapped in the atmosphere, causing a rise in temperature (2 words) |
| 6. | the amount of something that is available for use |
| 8. | when something is poisonous |
| 9. | the soil, air, and water around us that affect living things |
| 10. | the process that water goes through when it is evaporated into the air and returns to the land as rain or snow (2 words) |
| 13. | to do something with concern |
| 14. | to reprocess things so they can be used again |
|
|
Across
| 2. | the changes in the Earth's atmosphere that may cause climate changes around the world (2 words) |
| 5. | the process of removing all the trees from an area |
| 7. | any substance found naturally that is useful or helps to sustain life (2 words) |
| 11. | to care for and protect our natural resources |
| 12. | the gases around the Earth |
| 15. | a lake, desert, marsh, or other environment where living things live and depend on one another |
| 16. | the science of living things and how they relate to their environment and to each other |
| 17. | to restore something to its original state |
| 18. | trash left on the ground |
| 19. | the layer of the Earth's atmosphere that protects the Earth from ultraviolet radiation |
|
