The Siemens We Can Change the World Challenge gives students in grades K-8 the opportunity, tools and inspiration to become agents of change. From their website:
The Siemens Foundation, Discovery Education, and the National Science Teachers Association invite you to join the only Challenge of its kind that empowers students to create solutions to environmental problems in their own backyards, and to share their results with students nationwide. They’ll learn. They’ll take action. And their ideas may well end up changing the world.