Energy Tube, teaching resource for an array of scientific concepts: open and closed circuits, conductors vs. Insulators, light waves, sound waves,currents, and energy, When a conductor touches both of the electrodes on tube, tube emits a sound and flashing red/green/blue LED lights
Radiation Can, for demonstrating solar energy and heat transfer, place in the sun or near a bright light bulb and watch the temperatures rise, Set of three 500ml cans
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