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!
Learn Chemistry While Creating Sweet Treats
This high precision gyroscope will amaze you with rotational speed and ease of precision.
Watch this laser pointer emit a cool purple beam!
With this cool electronic kit you get to assemble your own mini electric guitar!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
This is a deluxe soldering station that can handle any kind of application!