Once your physical science stars have a grasp of the different forms of energy, use this resource to get them putting the energy to work. Small groups choose from seven different project options and work together to build an energy transforming project. Links to a website give them the instructions to make an electromagnet, a rheostat, a lemon-powered battery, a rocket boat, a turbine, a solar cooker, or an air-propelled toy. Think of it as an invention convention!