Across
- 4. Eat both plants and animals.
- 5. Effect The process that occurs when gases in Earth's atmosphere trap the Sun's heat.
- 8. Respiration When organisms release the energy of sugar to make ATP.
- 9. The amount of space something takes up.
- 11. Animals that eat other animals.
- 13. How much weight something has.
- 14. An educated guess.
- 17. Cycle Shows the continuous movement of water through the earth and its atmosphere.
- 18. Organisms that have to take in food.
- 19. The contamination of air, water, soil, and land.
- 20. Information and measurements you write down.
- 21. Animals that eat only plants.
Down
- 1. When plants use light to make food.(Sugar)
- 2. A large community of plants, animals, and climate that occupies a distinct region.
- 3. Group of individual organisms that are the same species and live in the same area.
- 6. No more organisms of that species living on earth.
- 7. The study of the relationships between organisms and their environment.
- 10. All of the populations in an area.
- 12. What you do to test a hypothesis.
- 15. Organism that makes its own food.
- 16. The part of Earth where life exists.