Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

In this worksheet, children practice identifying animals of North America by their tracks.

Children familiarize themselves with the tracks of a duck, bobcat, coyote, deer, raccoon, and black bear in this life sciences worksheet.