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
Jar, Polystyrene Have A Wide Mouth And A Pvc Lid, Its Polystyrene Design Helps To Prevent The Jar From Breaking, Making It Ideal For The Lab Or Classroom Setting, Size: 16Oz