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
Engineering a Drug Delivery System Kit, Includes: 5g Simulated Drug, 1L Hydrochloric Acid 1.0M, 1L Sodium Hydroxide 1.0M, 45 Hydrogel Delivery Systems, 45 Plastic Delivery Systems, 45 Cups, 5oz, has enough materials for 15 groups, with Teachers and students Manual