Across
- 2. Where you get made-to-order ice cream
- 4. The basic unit of a chemical element
- 10. Change of state from gas to liquid
- 11. Tiny droplets of water suspended in the air can form this
- 13. A frozen treat
- 15. Most of the air is this gas
- 17. To reproduce, as in results of an experiment
- 18. Water is this state of matter
Down
- 1. Invisible substance that surrounds us
- 3. Change of state from liquid to gas
- 5. Change of state from solid to gas
- 6. A scientific procedure undertaken to test a hypothesis
- 7. Ice is this state of matter
- 8. An educated guess
- 9. There are over 100 of these on the periodic table
- 12. Reactive gas that is 21% of air
- 14. A branch of science
- 16. Water vapor is this state of matter