Smithsonian Institution
Smithsonian Learning Lab: Fossils: Footprints Across Time
Smithsonian Education presents "Fossils: Footprints Across Time." Teachers can download this teaching package that introduces students to the study of fossils. Students will discover what fossils can teach us about the Earth as it was...
Children's Museum
Children's Museum of Indianapolis: Geo Mysteries
This interactive site will engage students' curiosity as they learn about the various types of rocks and how they are formed. Also includes a fantastic timeline, showing the formation of rocks throughout history.