Across
- 3. a tiny particle made up of protons, neutrons, and electrons
- 6. a part of an atom that has a negative charge and travels around its nucleus
- 7. the part of an atom that has no charge
- 8. an idea about how the world works
- 9. the part of an atom that is inside the nucleus and has a positive charge
Down
- 1. the central part of an atom
- 2. person who studies science
- 4. what everything is made of
- 5. to refuse or push back