Across
- 3. different elements found in soil needed for pant growth
- 6. the natural motion of carbon through the 5 spheres
- 7. the abbreviation for the carbon dioxide measurement parts-per-million
- 9. all matter included or involved in living things
- 11. life forms that extract energy from the dead remains of others
- 14. the chemical reaction animals use to extract energy from molecules
- 17. a sugar created during photosynthesis and used as blood sugar in animals
- 18. the gas inhaled by plants and exhaled by animals
- 19. the chemical reaction plants use to capture solar energy and turn it into chemical energy
- 21. a fluid necessary for all life on Earth
Down
- 1. all man-made or man-controlled matter
- 2. life forms that need to eat other life in order to survive
- 4. all gases held to the surface of the planet by gravity
- 5. the organelle in plant life where respiration occurs
- 8. all water on the planet, including fresh, salt, ice, and snow
- 10. life forms that have the ability to create chemical energy
- 12. the gas exhaled by plants and inhaled by animals
- 13. a form of energy captured by plants
- 15. the organelle in plant life where photosynthesis occurs
- 16. all non-living matter on the planet, primarily rock
- 20. the small openings in leaf surfaces that plants use to breathe