Learn about Alternative Energy! Build a digital clock that runs on tap water or other household materials like fruit juice and cola!  This science kit comes with an instructions for six experimental projects, including the water clock. It includes a departmentalized liquid reservoir, electrodes, red LED light, red and black wiring, a digital clock, and a capacitor.

There are no need for batteries! Your “liquid battery” powers both the clock and a light emitting diode. It’s easy -to-use, and will make kids smarter, which is why Snap Circuits products are so popular. Age 8 & Up.