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Explore microbiology, chemistry and electrical engineering, all in one science kit! MudWatt uses the natural micro-organisms found in soil to generate electricity. Within a few days, the LED light will start to blink using the power generated by bacteria within your dirt. Within a week, you’ll be able to power a digital clock—no batteries needed! MudWatt is reusable and experiments can run for weeks. Track your progress with the free MudWatt Explorer App (available on iTunes and Google Play). Includes a 20-page instruction booklet.