Heat & Renewables

5. Fancy name for heat radiation: "... radiation".
7. Special type of window that helps keeping heat in: "double-... window".
8. Name for the amount of carbon dioxide that you help release into the air: "carbon ...".
10. Fancy name for the type of energy that we will run out of someday: "non-...".
11. Name for passing on heat by moving a hot stream of particles around.
13. Name for the state in which particles can only vibrate but not move.
14. Name for the state in which particles can flow around but not leave the ground.
16. Average energy of a particle inside an object.
17. Material that easily allows heat energy to travel through it.
18. Fancy name for planet Earth getting hotter: "... warming".

1. Special type of foam that can be put under the roof to keep the heat inside a house: "... insulation".
2. Name for passing on heat over a distance, even in a vacuum without particles.
3. Total amount of energy of all particles inside an object.
4. Fancy name for a change in global or regional weather patterns: "... change".
6. Type of fuel that forms over millions of years from dead plants and animals: "... fuel".
9. Effect that makes both plants grow faster and planet Earth hotter: "... effect".
11. Name for passing on heat from particle to particle.
12. Material that does not let heat flow through it easily.
15. Type of camera that allows us to see how hot something is: "... imaging camera."
18. Name for the state in which particles are free to escape into the air.