Across
- 2. two or more substance ms that are not evenly mixed
- 3. any change that causes a new substance to form
- 7. negatively charged particle
- 9. particles with no charge
- 11. any characteristic of matter that you can observe or measure without changing it into a new substance
- 14. two or more substances that are evenly mixed
- 15. anything that has mass and takes up space
Down
- 1. Describes how a substance reacts
- 4. building blocks of matter
- 5. made of only one kind of atom
- 6. center of an atom
- 8. combination of two or more substances
- 10. change in which no new substances are formed
- 12. made of two or more atoms joined together
- 13. positively charged particles