Across
- 4. the smallest unit of all matter
- 7. how much matter is in a substance
- 8. state of matter with atoms far apart
- 10. a substance with only one type of atom
- 11. state of matter with atoms kind of close together
Down
- 1. what can make atoms move faster
- 2. this goes up when matter is compressed
- 3. the amount of space something takes up
- 5. two or more types of atoms combined
- 6. anything that has weight and takes up space
- 9. state of matter with atoms close together
- 12. the mixing of two substances