Across
- 3. building blocks of matter
- 7. if you take samples all atoms or molecules will be the same
- 8. repeating geometric shapes made of atoms or molecules
- 9. neutral charge
- 10. If you take samples there will be different atoms or molecules
Down
- 1. examples are hydrogen and helium
- 2. negative charge
- 4. anything with volume and mass
- 5. 2 or more atoms bonded together
- 6. positive charge