| A | B |
|---|
| attract | to pull toward one another |
| compass | instrument that tells direction |
| current | flow of electricity through a conductor |
| electricity | form of energy that can produce heat, light, and magnetism |
| electromagnet | piece of iron that becomes a temporary magnet when electricity flows through an insulated wire wrapped around it |
| filament | material in a lightbulb that glows when heated by an electric current |
| lightening | flash of light caused by a discharge of static electricity between two clouds or from a cloud to the Earth |
| lodestone | form of mineralized magnite that is naturally magnetic or has become magnetized |
| magnetism | property of certain kinds of materials that makes them attract iron or steel |
| patent | document giving the right to take credit for an invention |
| pole | either of two opposing forces or parts, such as the poles of a magnet |
| repel | to push away |
| static electricity | positive and negative electric charges that are separated from each other and are not moving |
