vocabulary contract

2. Energy Energy of motion; motion of waves, electrons, atoms, molecules, and substances
3. substance made up of atoms with the same identity
4. Units of power, the rate at which a bulb or appliance uses energy.
5. Energy Stored energy and the energy of position
8. Energy Audit A survey you can take in your home to find out which parts of your house use the most energy.
9. 1000 watts
10. Guide Label A yellow and black paper that breaks down the energy efficiency of an appliance.
11. Light Emitting Diode.
12. compact fluorescent light bulb.

1. Positively charged particle of an atom
2. The unit in which we buy electricity.
5. Table Table where elements are organized by increasing atomic number
6. Incandescent Light Bulb
7. A measure of the amount of light falling on an object at a given distance.
11. Expectancy The average time in hours that a bulb has been tested and is expected to operate under normal conditions.