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