Across
- 4. To take in or soak up energy.
- 5. A reaction that releases energy and feels hot.
- 7. A reaction that absorbs energy and feels cold.
- 10. The ability to cause change or do work.
Down
- 1. When energy moves from one place to another.
- 2. The part of the reaction being studied (the chemicals inside the pack).
- 3. Everything outside the reaction that can gain or lose energy.
- 6. To let out or give off energy.
- 8. Reaction When substances change into new substances with different properties.
- 9. A connection that holds atoms together.