Across
- 7. Positively charged particles
- 9. To increase in size or amount
- 11. The nucleus of an atom is the source of nuclear energy
- 13. Moves back and forth quickly
- 15. A temperature scale in which water freezes at 0 degrees and boils at 100 degrees.
- 19. A form of energy that is transferred by a difference in temperature
- 22. A material that does not conduct heat well
- 23. A measure of how hot or cold something is
- 26. Energy of motion
- 28. Negatively charged particles
- 30. Burning
- 32. The temperature at which a solid becomes a liquid
- 33. The direct transfer of heat from one substance to another substance that it is touching
- 34. A form of matter that has a definite shape and volume
- 35. Heat energy
- 36. The change from a gas to a liquid
- 37. An instrument used to measure temperature
- 39. An element that is shiny and that conducts heat and electricity
- 40. Amount of space occupied by an object
Down
- 1. A state of matter that has no definite shape but has a definite volume
- 2. A state of matter with no definite shape or volume
- 3. Neutral particles that do not have an electrical charge
- 4. A group of atoms bonded together
- 5. The transfer of energy by electromagnetic waves
- 6. Mass divided by Volume
- 8. A change directly from the solid to the gaseous state without becoming liquid
- 10. The basic state of matter on the sun's surface
- 12. Freezing pt. 32 degrees boiling pt. 212
- 14. The force pushing on an area or surface
- 16. The temperature at which a liquid changes into a solid
- 17. The change of a substance from a liquid to a gas
- 18. Solid to liquid
- 20. The transfer of thermal energy by the circulation or movement of a liquid or gas
- 21. Center of an atom
- 24. A pure substance made of only one kind of atom
- 25. A chart of the elements, arranged to provide information about each element's behavior
- 27. The temperature at which a liquid changes to a gas
- 29. To draw together, to reduce in size
- 31. Basic unit of matter
- 38. Anything that has mass and takes up space