Energy & Heat

1. heat will _______ flow from cold to hot
3. matter with closely packed particles and low movement
5. heat _______ from hot to cold
6. up/down or back/forth motion of waves
8. thermal energy cycles of hot fluids rising & cold fluids sinking due to density differences
10. energy stored in the nucleus of radioactive atoms
12. absolute _______; absolutely no thermal energy in matter
14. the traveling of energy from one place to another
16. matter with particles far apart and high movement
20. the amount of space something takes up
21. heat flows from hot to cold until they are the _______ temperatures
24. heat energy
28. particles that move _______ produce slower temperatures
29. means to "conserve" or "keep"
30. particles that move _______ produce hotter temperatures
31. matter going from solid to liquid
32. thermal energy that travels through contact
33. the passing of thermal energy
34. energy stored in the bonds of atoms
38. energy stored in stretchy material such as rubber

2. energy that travels through space
4. energy from a flow of electrons
7. motion energy
8. matter going from gas to liquid
9. a property of matter that comes in many forms; sound, light, heat
11. energy cannot be created or destroyed, only
13. the amount of particles something has
15. matter with loose particles that flow
16. two forces pulled toward each other based on mass and distance in between
17. stored energy
18. the average kinetic energy of a substance
19. energy of an object; whether moving or still
22. matter going from liquid to gas
23. "light waves"; both visible and invisible
25. materials will never ________ temperatures
26. matter going from liquid to solid
27. can describe gas and liquids; they "flow"
28. energy that is passed by particles bumping into each other
35. anything with mass and volume
36. the amount of particles per volume occupied
37. energy that humans can see with their eyes