Building simple circuits with copper tape, ... School STEM students are putting the engineering design process to work by figuring out how to improve their designs to make the bulb light up, ...

What you need: 3 crocodile-clip wires 9V battery LEDs Assorted resistors Asparagus . THE candle. It is a simple technology, and a good one. The electronic version is also simple to make, and is a ...

Last time, we went through the basics of how to make simple electrical circuits with play dough and light-emitting diodes, now it's time to experiment with electricity By Ruben Meerman ...