Curated OER
Hila Traffic Light
Step-by-step instructions for constructing a miniature traffic light make up this Picasa presentation. Directions are accompanied by high-quality photographs. This would make a worthy group project in an upper elementary or middle school...
Curated OER
Bronx Cheer Bulb
If you chew or make a "raspberry" while viewing an LED light source, the light will appear to wiggle or flicker. It is not because of the light itself, but because of the vibration of your skull! Have your physics class give this a try...
Curated OER
Hila Research Centre - Electronics 1
Basically walk your early electronics techs through the vocabulary relating to an electronic circuit. Give them an LED light, a resistor, a battery, and some clips, then have them construct a simple circuit. Specific electronic equipment...