Across
- 3. an assortment of elements
- 4. neutral subatomic particles
- 5. the total protons and neutrons
- 6. electrons on the outer ring of the electron cloud
- 7. reaction to gravity
- 9. a change in a plant
- 11. the total number of protons or electrons
- 12. positively charged subatomic particles
Down
- 1. reaction to water
- 2. an assortment of protons neutrons and electrons
- 8. reaction to touch
- 10. negatively charged subatomic particles