American Geological Institute: K-5 GeoSource
A collection of content, activity and assessment ideas, printable resources, links, and research-based articles geared toward teachers of Earth science but suitable for all elementary science educators. In addition to offering materials and ideas for classroom instruction, K-5 GeoSource
provides links to professional development opportunities, such as online courses and workshops, as well as links to funding and award sources. Navigate the site by clicking on the bright crayons in the left toolbar.