Simply fill with air by running, tie off the ends, and let the solar energy of the sun heat the air inside the bag. Within about five minutes, the bag (which must be tethered with string) will rise into the sky. Absolutely amazing to see, it teaches man..

Low-cost solar motor operates 1/2V to 3V. Low torque - high rpm. 200 ma start up. Runs at 80 ma no load. Shaft: 2 mm dia. x 1-1/2" long. 3" lead wires with ring connectors.

A great desktop item and attention-getter! Four powerful solar cells (included) are mounted on a revolving disk and motor which is mounted to a plastic stand and base. Watch as the entire disk begins to whirl around when placed in the sun. 4" di..

Mini Panels use solar cells similar to those that power our satellites in space, yet they are safe and simple to use. These mini panels allow for handling without the normal breakage and cell damage associated with solar cells. Best for motors. 6" w..

A working model of a basic passive solar-heated house. Demonstrate principles of collecting, storing, and using solar energy. Conduct experiments in a classroom window or outdoors. Includes water storage container, thermometer, reflector, insulation..

This creative teaching aid affords students the opportunity to experiment firsthand with a device that harnesses the sun for practical purposes. Based on the principles of a solar collector, the temperature rises to 350° F behind the heat-retai..

Mini Panels use solar cells similar to those that power our satellites in space, yet they are safe and simple to use. These mini panels allow for handling without the normal breakage and cell damage associated with solar cells. 6" wires. Size of sol..

Mini Panels use solar cells similar to those that power our satellites in space, yet they are safe and simple to use. These mini panels allow for handling without the normal breakage and cell damage associated with solar cells. 6" wires. Current mil..

Mini Panels use solar cells similar to those that power our satellites in space, yet they are safe and simple to use. These mini panels allow for handling without the normal breakage and cell damage associated with solar cells. 6" wires. Current mil..

Grade 4 and up.
Feed it saltwater and watch it scurry away! Students learn about new forms of clean energy while building and powering their very own toy. This environmentally and kid-friendly concept reflects the cleaner ways we think a..