Across
- 2. Organism that breaks down dead plants and animals.
- 3. Process plants use to turn sunlight into food.
- 7. Organism that makes its own food like a plant.
- 8. Hot liquid rock that erupts out of a volcano.
- 9. Smallest unit of life in all living things.
- 11. Breaking down of rocks into smaller pieces over time.
- 15. Water vapor cooling down to form liquid droplets.
- 16. Gas that humans need to breathe to survive.
- 18. Giant ocean storm with heavy rain and strong winds.
- 20. The natural home or environment where an organism lives.
Down
- 1. Preserved remains of ancient plants or animals.
- 4. An animal that eats only plants.
- 5. Transfer of pollen from one flower to another.
- 6. The planet we live on.
- 10. Any living thing like a plant animal or bacteria.
- 12. A deep underground water source.
- 13. Energy sources like wind or solar that won't run out.
- 14. Huge body of salt water covering most of the Earth.
- 17. An animal that hunts and eats other animals.
- 19. The hard outer layer of the Earth.