Chapter 22

6. Any material that keeps energy such as electricity, heat, or cold from easily transferring through
9. radiation, due to the decay of radioactive materials in the earth itself.
10. the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
12. law of cooling, the rate at which an object cools is proportional to the difference in temperature between the object and the object's surroundings
13. house effect, the way in which heat is trapped close to Earth's surface by greenhouse gases.

1. the throwing back by a body or surface of light, heat, or sound without absorbing it.
2. the production and discharge of something, especially gas or radiation.
3. energy, Radiant energy is the physical energy resulting from electromagnetic radiation, usually observed as it radiates from a source into the surrounding environment.
4. the process or action by which one thing absorbs or is absorbed by another.
5. waves, waves that are created as a result of vibrations between an electric field and a magnetic field.
7. radiation, a general term for the electromagnetic radiation emitted by the sun.
8. Radiation is energy that comes from a source and travels through space at the speed of light.
11. radiation, a region of the electromagnetic radiation spectrum where wavelengths range from about 700 nanometers (nm) to 1 millimeter (mm).