Across
- 3. Releases energy in the form of light or heat
- 8. An example of an exothermic reaction (2 words)
- 9. The breaking and forming of bonds between different substances (2 words)
- 12. The amount of energy needed to make a chemical reaction start (2 words)
- 13. Light energy is stored as chemical energy in __
- 14. Substances that are changed during a chemical reaction
Down
- 1. Controls metabolic reactions
- 2. An example of an endothermic reaction
- 4. All the chemical reactions within each cell of an organism
- 5. Break down larger molecules into smaller compounds
- 6. Substances that are made by a chemical reaction
- 7. Build larger molecules from smaller ones
- 10. When enzymes speed up reactions
- 11. Absorbs energy in the form of light or heat