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