Across
- 2. something that makes up matter
- 3. something reversible
- 5. on the periotic table
- 9. something that makes up a atom
Down
- 1. ability to be molded or shaped without breaking
- 3. a liquid turning into a solid
- 4. something irreversible
- 6. something neutral that makes up an atom
- 7. the center of an atom
- 8. starts with a p and also makes up an atom