This document contains short definitions of electromagnet, conductor, insulator, and light. Electromagnet is defined as magnetism created by an electric current. Conductor is a material that allows energy to flow through it easily. Insulator is a material that keeps electric current or heat from flowing. Light is defined as energy and colors that our eyes can see.

1. electromagnet
November 12, 2013
Magnetism created by an
electric current.

2. conductor
November 13, 2013
Material that allows energy to flow
through it easily.

3. insulator
November 14, 2013
Material that keeps electric current or
heat from flowing.

4. light
November 15, 2013
Energy and colors that our eyes can see.