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!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
This microscope is so versatile you can even take it with you on a job site!
Easily assemble a working alarm motion detector!
Perform awesome experiments using everyday materials found in any kitchen!
Working model representing the sun, earth, and moon and their relationships.