Across
- 1. The ability to do work.
- 3. The atomic number is the total number of ___ in the nucleus.
- 8. Melting is a (physical or chemical?) change.
- 10. Smallest part of an atom, orbits around the nucleus.
- 11. Amount of space a substance takes up.
- 12. Basic building block of all matter.
- 13. Type of change that just changes the phase, shape, or form (does not make a new substance).
Down
- 2. Part of the atom with no charge.
- 4. Part of an atom that contains both protons and neutrons.
- 5. Energy cannot be created or destroyed, it can only be ____.
- 6. Combustion is a (physical or chemical?) change.
- 7. Part of the atom that is positively charged.
- 9. Type of change that creates a new substance