Across
- 2. a substance that takes part in and undergoes change during a reaction
- 3. chemical name is hydrogen, a liquid we need for survival
- 5. a substance produced during a natural, chemical, or manufacturing process
- 9. organisms that decompose other dead organisms and break down chemical substances.
- 11. the star around which the earth orbits
- 12. organisms that eat meat only
- 14. a more complex food chain
- 15. another word for sugar
Down
- 1. organisms, mainly plants that produce their own energy
- 4. energy from the sun
- 6. organisms that eat plants only
- 7. Process in which carbon dioxide gets turned into glucose and oxygen
- 8. one of the chemicals created through photosynthesis
- 10. organisms that can eat both plants and meat
- 13. organisms that need to consume other organisms for energy