Tree climbers and tree huggers alike, learn the basics of reading tree rings to find out about the life of a tree.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

This worksheet uses a paper bird to demonstrate center of gravity, and practices following directions and fine motor skills.

Meet the inhabitants of the arctic tundra with these delightful printable, which features a cast of caribou, arctic fox, arctic hare, and ermine finger puppets.

When spring is in full bloom, be sure to get outside to smell the flowers! Your little nature lover can have fun with this flower identification activity.

Invite your kindergartener to fill out this elephant chart--testing her knowledge of an elephant's parts.

Learn more about the earthworm by reading the diagram and, if you dare, conducting a few of the experiments on the next page.

Kids follow corn as it grows from seed to vegetable on this simple cut-and-paste growth chart.

Help your child learn about facts and opinions in this animal-themed worksheet! Students will read sentences and decide whether they express facts or opinions.

Fossils can tell us about life on earth, but they can also teach kids the scientific method.

Meet the Carolina Wren, a small bird that lives in the deep south of the U.S. and as far south as Central America.

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

Learn about the animal practice of hibernation in this quick science worksheet.

Introduce children to the food supply chain with this matching activity.

The Oregon state bird is the Western Meadowlark. First graders will love learning fun facts and adding color to the picture of this bird!

Test your kindergartener's understanding of the parts of a dolphin with this adorable, fill-in-the-blank dolphin chart.

Download this worksheet for answers to our animal reading comprehension series.

Studying earth science? Learn about the different types of clouds with the series of cloud types.