$$$$$ Best Value, 4 pcs set, 13838, Science Generate Electricity Clock for school, kids learning about chemistry, Physics

It comes with a kit that allows you to experiement water conductivity on everyday items that has water content inside. Fruit Battery-Potato Clock Science Experiment Kit for DIY Home Teaching Toy, School Science Project and Education Subject Toys. This kit includes a clock, wires and prongs; two potatoes are all that's needed to create a working clock.

This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science.. Fun and Functional Science home kit. Two or three fruit parts are all that's needed to create a working clock.No batteries required. Ability training: intellectual development, hands-on brain, interest training, parent-child communication, interactive toys, and other abilities Apple, orange, pineapple, potatoes, etc., can be made into fruit battery. The production of science and technology can magnify the imagination of the child and stimulate the children's ability to create and invent new things This kit includes a digital clock, wires, prongs, and a small lightNo Batteries needed. Conductivity Experiment. No batteries required. Clock DIY Green Science Chemistry Engineering Lab - STEM Toys Educational Gift for Kids & Teens, Girls & Boys