Have you seen the Science After School Consumers Guide? The Guide grew out of early discussions amongst Coalition founding members about the need to have a guide to the high-quality, hands-on science content that is available for use in out-of-school time settings. The Lawrence Hall of Science spearheaded a project to find those resources, and conducted a review with the support of the SEDL National Center for Quality Afterschool.
After an open-nomination period, submissions were reviewed for various indications of quality and categorized by grade, target audience, cost, and subject. Users can search for curricula, activity kits, instructor guides, and web sites that offer appropriate content for learning science on out-of-school time. Real educators from across the country rate and review the resources, and can submit new resources that they think are missing from the Guide.
In addition, the Science After School Consumers Guide partnered with the folks at the Science and Math Informal Learning Educators (SMILE) Pathway (which we profiled here last October) to feature free sample projects and activities from many of the resources listed in the Guide. Check out the bar on the right side of each resource's page to see the activities featured on howtosmile.org (such as here, on the Fetch! page).
For more information on high-quality science curriculum, check out the Coalition's Afterschool Science Activities and Curricula page.