Across
- 2. big ice cube
- 4. boil then evaporate
- 6. warm, wet, cold everywhere has one
- 8. area of land that drains into one main lake
- 10. something all organisms need
- 11. group of people in one area
- 14. build up of calcium
Down
- 1. you surf on this
- 3. rocky mountain
- 4. variety of different species
- 5. salt content in the ocean
- 7. to observe someting
- 9. laundry soap and something the moon affects
- 12. something that we are running low on (97% of the earth is covered)
- 13. water does this to the ground