Across
- 1. The very small objects that solids, liquids and gases are made up of.
- 5. The temperature at which a solid turns into a liquid.
- 6. Get smaller because particles get closer together.
- 8. The unit of energy.
- 11. Type of energy linked to particle movement, sometimes called heat.
- 12. How hot an object is.
- 14. Transfer of thermal energy by particles hitting each other.
Down
- 2. A piece of equipment used to measure temperature.
- 3. Transfer of thermal energy through fluids or gases by the movement of particles.
- 4. A material that lets thermal energy flow through it.
- 7. The temperature at which a liquid turns into a gas.
- 9. The ability to do work, measured in Joules.
- 10. A material that does not let thermal energy pass through it.
- 13. Get bigger because particles get further apart.