Thames & Kosmos Physics Solar Workshop (V 2.0) Science Kit Almost every form of energy we use originates as energy from the sun Physics Solar Workshop explores the topic of solar energy, focusing on photovoltaic cells learn how solar cells transform light into electrical energy, and how motors and mechanical devices can optimize the work done by this energy build a cool praying mantis model that moves like an insect and is powered by a solar cell The models can also be powered by a battery, allowing operation in all lighting conditions