Use your imagination and invent a battery powered circuit that creates art or washes the dishes. These squiggle bots are super easy to build using parts that you can probably find around your house. Snap a photo or video of your bot as it draws across a flat surface!
Solar power can be used to power all sorts of fun devices, like cars, fans, and even a cockroach robot. It only costs about $2.50 and 20 minutes of time to make a gadget that runs right off the sun’s rays. This project solves a challenge for the Solar Engineer Skill.