Across
- 3. Water is this state of matter
- 8. A scientific procedure undertaken to test a hypothesis
- 9. Where you can get yummy, made-to-order ice cream
- 10. The invisible substance that surrounds us
- 11. A frozen treat
- 12. There are over 100 of these on the periodic table
- 13. An educated guess
- 14. How hot or cold something is
- 15. Reactive gas that is 21% of the air
- 17. Change of state from liquid to gas
- 19. Ice is this state of matter
- 20. The basic unit of a chemical element
Down
- 1. Tiny droplets of water suspended in the air can form this
- 2. Most of the air (78%) is this gas
- 4. A branch of science
- 5. Change of state from gas to liquid
- 6. To reproduce, as in results of an experiment
- 7. The amount of physical force exerted on or against an object
- 9. Change of state from solid to gas
- 16. Water vapor is this state of matter
- 18. The amount of space something takes up