Physics Experiment Electric Ball Novelty Students Teaching Equipment

Physics Experiment Electric Ball Novelty Students Teaching Equipment Description : Size : 100 70mm Color : White Material : PVC This equitpment is designed for the pupils, in order to explore the secret of human body as a electric conductor. It will guide and motivate childrens the interest of science. Instruction : It has the inner circuit, designed of two hemispheres the edge has two metal screws which people could touch. The inner of ball has high energy micro battery. Method : 1.To touch one of screws by one hand. The inner light of ball isnt on, and it shows that it fails to the formation of circuit. 2.To touch two screws by your hands respectively, it means the circuit connects with human. The inner light is on, and it proves that human is a electric conductor. 3.If you touch the two screws, the harder you touch, the more brighter the light has. Why 4.To test with several students, hand by hand, The first and the last student touch the two screws respectively. The innner light wi Lees meer over de Physics Experiment Electric Ball Novelty Students Teaching Equipment van huismerk in de productgroep learning en education