Across
- 3. / A measure of how hot or cold something is
- 5. / Formed by condensed water vapor in the air
- 7. / Required for matter to change states
- 9. / Process of lowering temperature
- 10. / A high-energy state of matter found in lightning and stars
- 11. / Rapid change from liquid to gas
- 14. / Water in its gas form
- 15. / Invisible gas form of water
- 19. / General term for change from liquid to gas
- 20. / Change from solid to liquid
- 22. / Energy that increases temperature
- 23. / Frozen water, a solid
- 24. / A state of matter with a fixed shape and volume
- 25. / Another word for a state of matter
Down
- 1. / A repeating pattern of changes in states
- 2. / Change from liquid to solid
- 4. / Change from gas to liquid
- 6. / Change from solid directly to gas
- 8. / Slow change from liquid to gas at the surface
- 12. / Liquid form of H₂O
- 13. / What matter does when it gains or loses energy
- 16. / A state of matter that flows and takes the shape of its container
- 17. / Anything that has mass and takes up space
- 18. / Solid, liquid, gas, and plasma
- 21. / A state of matter with no fixed shape or volume
