This document defines key electrical terms over several days in November 2014, including a closed circuit which allows current to flow, an open circuit where electrons do not flow, electrons as small charges that create electrical energy, reflection as when colors or images bounce off a surface, and refraction as when colors or images bend.

1. November 17, 2014
closed circuit
A connected circuit in which
current is moving (ON).

2. open circuit
An electrical circuit where electrons DO
NOT flow (off).
November 18, 2014

3. November 19, 2014
electron
Small charges of energy that flow to
create electrical energy.

4. November 20, 2014
reflection
When colors or images bounce off of a
surface.

5. November 21, 2014
refraction
When colors or images bend.