Across
- 4. substance composed of atoms of two or more elements
- 6. organism that must eat other organisms to obtain nutrients
- 10. organism that produces its own food
- 11. freshwater underground
- 14. a mixture in which all ingredients are evenly distributed
- 17. the living Earth
- 19. subatomic particle with no charge
- 20. matter that organisms require for their life processes
- 21. depositing of eroded soil at a new location
- 22. drive systems toward an extreme, rare in nature
Down
- 1. two plates slip and grind alongside one another
- 2. organism that break down wastes and dead organisms
- 3. charged atoms
- 5. nutrient cycle
- 7. causes water to stick to ITSELF
- 8. the ice covered parts of the Earth
- 9. contains the gases that organisms use for life processes
- 12. conversion of nitrogen gas into ammonia
- 13. single type of atom
- 15. the release of water vapor by plants through their leaves
- 16. large plates of lithosphere
- 18. conversion of a substance from a liquid to a gas