The National Renewable Energy Laboratory (NREL) has assembled an impressive array of educational resources for teachers working with elementary, middle, and high school students. On the site, readers may download PDF lessons on Biomass for fourth through sixth graders, ethanol for sixth through eighth graders, and wind energy for ninth through twelfth graders. Each lesson plan provides clear guidance for implementation. For example, the plan for Experiments with Biomass, designed for grades four through six, can be done in small groups or with the whole class, can last between two and 15 class periods, and proceeds through 12 activities to teach about the environment, byproducts of biomass, and the types of energy contained in biomass. Engaging drawings and clear layouts make the plans accessible and digestible.