Curated OER
The Physical Environment
Fourth graders use damp sand, a baking pan, and water to simulate erosion. In this erosion lesson plan, 4th graders participate in a simulation to show what moving water does to land.
Curated OER
Mud Fossils
Students observe real fossils. In this science lesson, students make their own mud fossils by pressing material into the mud and letting it dry in the sun for 3-4 days. Students then get the fossils out displaying their mud fossils.
American Museum of Natural History
Finding Fossils
How does one go about finding fossils? Find out with an informative webpage that looks at the digging process, showcases rocks and common fossils, helpful tips, and a list of archeological do's and don'ts.
Curated OER
Geologic Age
Learners investigate radioactivity as a tool for measuring geologic time and how geologists use this information to determine the absolute age of rocks or minerals.