What is clean energy and where does it come from? Ignite kids' growing curiosity about the environment with an inquiry-based approach to renewable energy. Many machines burn fossil fuels for power, which pollutes our air and leads to climate change. What if we used solar, wind, or hydropower instead? Conversational questions and answers guide early elementary readers on a critical thinking journey with accessible text about the different kinds of clean energy, how they are being used today, and how they could be used in the future.