Across
- 2. elements that are chemically combined
- 3. a liquid turns into a solid
- 5. everything is made of this
- 10. changing from solid to gas
- 12. changing from gas to solid
- 13. when a solid turns into a liquid
- 14. an atomic particle that has no charge
- 15. a group that does not receive treatment
Down
- 1. particle with a positive charge
- 4. pure substance with one type of atom
- 6. particle that has a negative charge
- 7. the ability of a substance to dissolve
- 8. in the experiment it is kept the same
- 9. the smallest unit of matter
- 11. the amount of matter an object has