Energy

3. - A safety device with a thin metal strip that will melt if too much current passes through a circuit.
6. - A circuit with more than one path for current flow.
7. - to send something across places; to pass along
9. - Allowing light to pass through
11. - To move or travel smoothly in a certain direction.
12. - A circuit with only one path for current flow
15. - A material that allows electricity to flow easily.
16. - A piece of glass that separates white light into colors of the spectrum.
17. - A material that does not allow electric charges to flow easily.
18. - to soak up or take in
19. - A clear piece of curved glass or plastic that bends passing light to focus or spread the light rays

1. - To make larger or to make seem larger
2. - material that moves energy or light from one substance to another
4. - An electrical path for current electricity.
5. - not letting light through
8. - Permitting light to pass through, but not transparent
10. - The bouncing back of a wave when it hits a surface through which it cannot pass.
13. - a device that opens or closes a circuit.
14. - the bending of a wave as it enters a new medium at an angle