Vender bswc 1 set niños bio energía ciencia kit de suministro de frutas electricidad experimentos juguete nuevo al mejor precio

Description: 100% Brand new and high quality Ideal for fun learning. Comes with everything needed to experiment with green energy. 1 Set includes digital clock,zinc /copper plates, wires etc. You may experiment with different fruit like lemon, orange,tomato etc.The fun is unlimited. Type: Children's Bio Energy Science Kit Material: Plastic,Metal Parts, Electronic Components Cable Length: approx.15cm Zinc /Copper Plates Size: approx.1*4cm Age: Ages 7+ Package Included: 1 Set Children's Bio Energy Science Kit How It Works: 1.The metal strips and fruits make a simple battery that creates electricity to operate to operate the clock. Each fruits works as a device called a electrochemical cell. It converts the chemical energy stored in the metal strips intoelectrucal energy.Four or two fruits are needed to make electricity strong enough to run the clock. 2.A cell works because of the chemical properties of the metals inside (in this case the copper and zinc).The different properties cause tiny particles charged with electricity . (called ions) to move between the the two strips of metal. This flow is an electric current. The fruits contains the particles that allow the current to flow,but it stops the metals touching. Electric current also flows along the wires between the zinc and copper strips and the clock. This current makes the clock work. Note: * Due to the light and screen difference, the item's color may be slightly different from the pictures. * Please allow 0.5-1cm differences due to manual measurement.