science
Across
- 3. anything with mass or volume
- 5. Something that is 2 or more atoms or molecules combinded together
- 7. A repeating pattern of atoms or molecules
- 9. A pure substance made of one type of atom on the periodic table
- 10. A partical with a positive charge
Down
- 1. The smallest unit of measurement
- 2. A substance made of only one type of substance
- 4. something that is 2 or more atoms bonded together
- 6. it surrounds the nucleus
- 8. A partical with a neutral charge