Across
- 2. less particles of an atom
- 5. a pure substance
- 6. takes the shape of the space it's in- fixed volume
- 7. the smallest particle of matter
- 9. the amount of matter in an object
Down
- 1. positively charged particles of atoms
- 3. negatively charged
- 4. holds its shape and keeps the same volume
- 8. takes the shape and volume of the space it is in