Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Here's a stormy science adventure that will blow your socks off! Learn about tracking hurricanes with this map of coordinates.

Budding biologists can learn all about human digestion with this information page, complete with a diagram of the digestive system.

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Does your budding biologist know his plant parts? Get a great review of some important plant vocabulary with this info page.

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

Help your child read this page about the Sumatran rhinoceros, where they can color an illustration as they learn about why this animal is endangered.

Teach your child about an endangered species with this information page, all about the Forest Owlet. They can color as they read some interesting facts.

Learn Jupiter facts in this worksheet. Your child can test his knowledge of the solar system by answering the trivia question at the bottom of the page.

Learn about the "dwarf planet" in our solar neighborhood. There are more Pluto facts to learn, if you figure out the answer to the question on the page.

There are some parts of our brains that are still too complicated for scientists to understand! Find out the basics of the brain's functions with this fun page.

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

Learn a little about our planet with an Earth coloring sheet and find out more about our travels in to space by aswering the question at the bottom of the page!

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

Learn about some of the most common forms of energy with this helpful one-pager for third graders!

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!