Another great student project, created by Make Magazine, is these solar insect robots. One of the great things about these little bots is that you can make them from scavenged materials. Use parts from broken electronics...

The Tabletop Explainer presents this video showing what you need, how to build an electric motor, and finally how it works. It is very simple, but can still be a challenging activity to students in a classroom or a...

You have one drywall screw, one 1.5 V alkaline cell, six inches of plain copper wire, one small neodymium disk magnet, and no other tools or supplies. You have 30 seconds to make an electric motor running in excess of...

The Snap-O-Lantern is a robotic mini-pumpkin. Normally, it just sits there, in disguise as a boring old pumpkin. But, every twenty seconds he comes to life. His LED eyes turn on, his jaw slowly opens, and then SNAPS...

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature...