Interactive Electrochemical Cell Demo: Build a working fruit-powered clock to explore chemical reactions and electricity. Battery-Free Green Technology: Teaches sustainability by generating power from potatoes or fruits. This product is recommended for ages 15 and older. STEM Classroom Ready: Engages students in hands-on chemistry and circuit-based experiments. Explore Conductivity: Compare voltage outputs from various fruits and vegetables. Complete Kit Included: Features plastic clock housing and all connectors—just add produce. The GSC International Two-Potato Clock is an engaging electrochemical science demonstration kit that lets students generate electricity using only two potatoes or fruits. Designed with two compartments to hold produce, the included red, blue, and green coils create a working circuit that powers a digital clock—no batteries required. This hands-on experiment makes abstract chemistry concepts like electrochemical cells, energy transfer, and conductivity easy to understand. Ideal for classrooms and homeschool learning, it also encourages curiosity about green technologies and alternative energy sources. Try different fruits or vegetables to explore conductivity and compare voltage outcomes. This product is recommended for ages 15 and older.