The world faces grave environmental challenges—climate change, pollution, overpopulation, loss of biodiversity, or ozone layer depletion—that we can address only with STEM knowledge and skills. That’s why the National Environmental Education Foundation created Environmental Education Week (EE Week) to promote environmental learning for kids in grades K – 12. This year's Environmental Education week starts Monday, April 23rd through Sunday, April 29th. How will YOU celebrate? We’re pleased to share seven curriculum units from the EiE afterschool programs Engineering Adventures and Engineering Everywhere that fit perfectly with the themes and goals of EE Week, call for inexpensive materials you probably have on hand already, and are super fun!