Across
- 1. Particles move closer together when cooled
- 6. Heat transfer by direct touch
- 7. The flowing movement in convection
- 9. Tiny pieces that make up matter
- 13. When a gas becomes a liquid
- 14. When a solid becomes a liquid
- 15. A state of matter with a definite shape
- 17. To bounce heat or light away
- 19. When a liquid becomes a gas
- 20. Heat transfer through waves and does not need particles
- 22. Thermal energy moving from warmer to cooler objects
- 24. Tool used to measure temperature
- 25. Particles spread out when heated
- 26. Energy transfer that can travel through empty space
- 27. A liquid or gas that can flow
- 28. The ability to do work or cause change
Down
- 2. Heat transfer by movement of liquids or gases
- 3. Warmer air or water is usually less this and rises
- 4. Energy of moving particles
- 5. Keeping heat inside using materials that slow heat loss
- 7. Temperature scale used in Canada
- 8. The movement of heat energy from one object to another
- 10. The main source of energy for Earth
- 11. How tightly packed particles are in a substance
- 12. A state of matter that spreads out to fill a space
- 13. A material that transfers heat easily (example metal)
- 16. A device that controls heating or cooling in buildings
- 18. A state of matter with no fixed shape but fixed volume
- 21. A word that means related to heat
- 23. When a liquid becomes a solid
- 24. How hot or cold something is