Across
- 3. Anything that takes up space.
- 6. Molecules are tightly packed.
- 7. A substance made of ONE type of atom.
- 8. Measure of kinetic energy.
Down
- 1. Another name for matter
- 2. Smallest piece of matter.
- 3. A group of atoms grouped together.
- 4. Shows the measurement of mass.
- 5. Smallest part of SI units.
- 6. A device used to measure weight
- 9. Amount of matter an object has