Across
- 3. All water on Earth
- 6. A pyramid that show the amount present at each trophic level in a given area
- 8. The sum of all the life on Earth
- 11. The movement of substances that involves Earth’s physical features
- 14. primary molecule used by cells to store chemical energy
- 18. The portion of the Earth system that includes Earth’s interior
- 19. A gas found in Earth's atmosphere produced by animals during respiration or during burning
- 21. The ending substance, written on the right side of the chemical reaction arrow
- 23. An organism that obtains its energy from an abiotic source
- 24. The process by which cells convert chemical energy
- 25. An element that is an essential building block of organic compounds
Down
- 1. An organism’s position on a food chain
- 2. The whole mass of air surrounding Earth
- 4. the process of decaying
- 5. A biomolecule that is used as a primary energy source and structural support
- 7. A monosaccharide sugar
- 9. The process of captured light energy to convert carbon dioxide and water
- 10. The conversion of inorganic carbon to organic molecule
- 12. A substance composed of multiple elements combined in fixed proportions
- 13. One of the primary substances that make up matter
- 15. Containing the element carbon
- 16. The starting substance, written on the left side of the chemical reaction arrow
- 17. Organisms such as bacteria and fungi that break down the remains
- 20. The continuous movement of carbon in and among the abiotic environment and living things
- 22. Matter that does not contain carbon
