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