Students make an electromagnet that attract a metal object, increase the strength of an electromagnet so that it attract an increased number of metal objects, and compare the properties of magnets and electromagnets.
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Visible Light and the Electromagnetic Spectrum
After investigating visible light and the electromagnetic spectrum young scholars explain the concept that light can be considered an electromagnetic wave. They give two examples of how engineers use electromagnetic waves, and describe...
3rd - 5th Technology & Engineering
Electromagnets - How Can Electricity Create a Magnet?
If you wrap wire around a screw and run an electric current through it, you create an electromagnet. What once had no magnetic pull is then able to pick up other metal materials. Marshall Brain demonstrates this for the camera in the...
5 mins 4th - 8th Science