Science "word of the day" for school... simplified definitions for K - 3 grade students. -- Light / Electrical

1. closed circuit
November 18, 2013
A connected circuit in which
current is moving (ON).

2. open circuit
November 19, 2013
An electrical circuit where electrons DO
NOT flow (off).

3. electron
November 20, 2013
Small charges of energy that flow to
create electrical energy.

4. reflection
November 21, 2013
When colors or images bounce off of a
surface.

5. refraction
November 22, 2013
When colors or images bend.