Biology Junction
Plant Structure and Function: Roots, Stems, and Leaves
Scientists found fossils of plants more than 420 million years old—but plants existed for up to 100 million years prior to these fossils. Learn about the importance of plants to the entire planet. Viewing a presentation helps scholars...
Project SMART
Dinosaur Trek
Second graders investigate dinosaurs. They explore various websites, submit questions to a paleontologist online, construct cut and paste model dinosaur skeletons, develop a graph to compare dinosaurs, and label pictures from online...
CK-12 Foundation
Ck 12: Third Grade Science: Earth Science: Fossils of Plants and Animals
[Free Registration/Login may be required to access all resource tools.] Explains what fossils are, describes how they form, and discusses what scientists can learn from fossils.