Temperature, Heat, and Matter

By Samantha Hughes (CHS Class of 2012)

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ACROSS
1. ____ scale. A scale that starts at absolute zero, useful for many scientific calculations. Water freezes at 273 K, boils at 373 K.
5. ____ scale. Water freezes at 32 degrees, boils at 212 degrees.
7. The flow of thermal energy.
11. The smallest particle of an element that retains the chemical identity of the element.
13. The transfer of heat by the direct contact of particles of matter.
14. Holds its volume, but doesn't hold its shape - it flows.
15. ____ energy. The sum of all the kinetic energy of the atoms or molecules added up together.
19. Holds its shape and doesn't flow.
20. The quantity of heat needed to increase the temperature of 1 gram of water by 1 degree Celsius.
21. Materials used to reduce the rate of heat transfer.
22. ____ scale. Water freezes at 0 degrees, boils at 100 degrees.
 DOWN
2. A pure substance that cannot be broken down into simpler substances by physical or chemical means.
3. Flows like a liquid, but can also expand or contract to fill a container; doesn't hold volume.
4. ____ forces. Force that attracts molecules to one another.
6. An instrument that measures temperature.
8. The transfer of heat through the motion of fluids such as air and water.
9. A substance that contains two or more different elements chemically joined and that has the same composition throughout.
10. Electromagnetic energy emitted from the surface of an object which is due to the object's temperature.
11. ____ zero. The lowest temperature theoretically attainable.
12. A material that has a high ability to conduct heat.
16. A group of two or more atoms joined together by chemical bonds.
17. ____ heat. A property of a substance that tells us how much heat is needed to raise the temperature of one kilogram of material by one degree Celsius.
18. Contains more than one kind of atom, molecule, or compound.