A potato battery is an electrochemical battery, or an electrochemical cell in which a chemical reaction occurs in a liquid between two different metals. When a wire is placed to connect the metals, it carries an electrical current. An electrochemical cell converts chemical energy to electric energy. This plastic clock has two compartments designed to hold potatoes or fruit. Two coils (one red and one blue) are inserted into a different potato while the green coiled wire is connected to both potatoes. This will then make the clock start working. This is an excellent demonstration clock to use in the science classroom!
Infiniview comes with a 3.5" LCD screen and rechargeable Lithium Ion battery that will last up to 2 hours in the field.
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
Watch this laser pointer emit a cool purple beam!
This is a classic demonstration toy of the powers of magnetic fields!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
Build a tumbling robot that gets up right after it has fallen down, without any outside help!