Across
- 3. Gasoline in the gas tank is an example of what kind of energy
- 5. The number of protons in the nucleus of an atom
- 7. The SI unit for energy is
- 8. The average mass of all naturally occurring isotopes of an element
Down
- 1. Toasting a marshmallow is an example of what change
- 2. The amount of space that matter occupies
- 4. How close a measurement is to the correct or accepted value
- 6. A substance that speeds up a chemical reaction without being consumed