Across
- 2. a reaction that absorbs heat energy from its surroundings
- 3. the substances formed as a result of a chemical reaction
- 6. a reaction that releases energy
- 8. the energy an object has due to motion
Down
- 1. electromagnetic radiation that is visible to the human eye
- 4. the substances at the beginning of a chemical reaction
- 5. the internal energy produced by the motion vibration and collision of atoms
- 7. the energy stored the structural bonds of atoms and molecules