Across
- 4. a nonmetallic element that is the simplest and lightest of the elements
- 6. a colorless odorless tasteless gas
- 7. respiration a series of chemical reactions that break down
- 9. potential energy energy that is released when atoms for bonds
- 10. an organic compound with molecular formula
- 11. a chemical element that happens to be one of the most stable
Down
- 1. the process by which plants, algae, and certain bacteria use sunlight, water, and carbon dioxide to create oxygen and sugar
- 2. more energy is released then absorbed
- 3. more energy is absorbed then released
- 5. energy energy made by heat
- 8. reaction A Chemical Reaction is a process that occurs when two or more molecules interact to form a new product