Across
- 4. water stored under the surface of the Earth
- 6. plants, animals, bacteria, fungi and single-celled organisms
- 9. Carbon moves from plants to animals.
- 10. nitrogen also has always been present on the earth
- 12. all processes on Earth are driven by four spheres
- 14. Carbon moves from the atmosphere to plants.
- 16. most is frozen in snow and ice in glaciers, ice caps
- 17. altered by bacteria
- 19. process which water is converted from its liquid state to the
- 20. Carbon moves from fossil fuels to the atmosphere when fuels
- 22. Carbon moves from living things to the atmosphere.
- 24. The ammonium salts are absorbed onto clay in the soil and then
Down
- 1. the air that surrounds Earth
- 2. and moisture in the air
- 3. water that falls from the atmosphere in the form of rain,
- 5. process which water vapor is changed back into liquid water
- 7. rivers, lakes, streams, oceans, groundwater, polar ice caps,
- 8. Carbon moves from plants and animals to soils.
- 11. rocks, minerals and ground that are found on and in Earth
- 13. need nitrogen to grow
- 15. get nitrogen they need by consuming plants or other animals
- 18. state (water vapor)
- 21. snow, hail, or freezing rain
- 23. travels between living and non-living parts of our planet
- 24. burned.