Across
- 1. a combination of protons, neutrons, and electrons.
- 4. the most worthless coin other than pennies.
- 8. #3 on the periodic table.
- 10. used mostly for wiring and is pretty conductive.
- 11. what happens after an experiment is done.
Down
- 2. a combination of atoms.
- 3. very strong metal.
- 5. A specific type of science.
- 6. hydrogen 2 oxygen.
- 7. made up of 2 chemicals that are not bonded.
- 9. super heavy and conductive, also very expensive.