My group and I brain-stormed and came up with a variety of ideas. At first we were thinking about magnets and something to do with a transformer. That seemed a bit too difficult so we came up with creating voltage to light something with acidic fruits. A few people (including me) used this for one of the projects in my intro to engineering class. This approach seemed too simple. We thought of wind turbines, building motors, building a toy hovercraft with a sensor, and even a catapult. None of these ideas were agreed by everyone in our group. So we came up with making small solar powered race cars. We will have three remote control cars powered by solar panels and have them race. This idea was decided and everyone in our group agreed on it.
