Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.

Learn about the black bears of Yellowstone National Park.

Can you identify the difference between inherited and acquired traits?

Ever wonder what makes the leaves change colors in the fall? Find out with this fascinating life science worksheet.

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

Your nature lover can learn the basics of drawing a tree with this simple step-by-step guide.

These flash cards serve as an intro to life science, but also help with counting skills and sequential ordering.

Introduce your child to the building blocks of life: DNA! This coloring page features a double helix structure, or a DNA strand.

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

In this animal-based life science worksheet, students will learn that animals inherit certain traits from their parents.