Science Education Resource Center at Carleton College
Serc: Minnesota Tree Blitz
This activity serves as an introduction to tree identification and helps learners learn about the natural world around them. While exploring trees of Minnesota, students will recognize biodiversity of trees and learn how to observe,...
CK-12 Foundation
Ck 12: Biology: Leaves
[Free Registration/Login may be required to access all resource tools.] Discusses different types of leaves and seasonal changes in leaves.
University of Illinois
University of Illinois Extension: Trees Are Terrific
The cartoon character Pierre discusses and illustrates the parts of a tree in a format suitable for younger students.