Across
- 2. A _____is a very hard substance.
- 4. Most gasses are not _____.
- 6. All particles are made of _____.
- 9. If you find an unknown substance, ____
- 11. Some examples of properties are ____, color, and texture.
- 12. Atoms in solids are _____ packed.
- 13. The atoms in gasses move the _____.
Down
- 1. Scientists classify materials based on _____.
- 3. Atoms are constantly _____.
- 5. properties to figure it out
- 7. Everything around us is made of _____.
- 8. Air is lighter than _____ that's why pool toys float.
- 10. Materials can be _____ by the properties.