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.

On this worksheet, kids learn all about the look and location of Uranus, and they get to cut out a picture to use in their own Solar System diagram.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

Learn about a common hawk native to North America, the Red-Tailed Hawk! Your child will love coloring this page as he reads some fun facts about this species.

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!

Can you match the scientist with the unit of electricity or power that is named after him?

Which animals can live happily alongside humans? With this word search, match up game, fun facts, your child will learn more about urban animal habitats.

Can you and your child come up with a few ways to conserve water in your home? This printable starts you off with five ways to conserve water.

Blast off deep into space with this science worksheet featuring the dwarf planet, Pluto.

Budding inventors can get a fun review of the simple machines with this word search.

Are you aware of how many endangered species there are in the world? Use this trivia sheet to test your knowledge of some beautiful but endangered animals.

This reading comprehension worksheet focuses on Brazil's incredible natural resources, targeting both Earth science and language arts.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

Find out all about the different parts of the eyes and how they work together to make vision possible.

This printable features the planet closest to the sun. Learn Mercury facts and further your knowledge of outer space by discovering new things.

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

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.

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

Can you guess how the Screech Owl got its name? Learn some fun facts about this species of owl with a fun info sheet!

Did you know that there are forests in the temperate ocean ecosystem? Learn all about the temperate ocean with this fun ecosystems sheet!

The insect order Hemiptera consists of True Bugs such as Stainers, Assassin Bugs, Leaf-Footed Bugs, and this Boxelder Bug.

Looking for a worksheet to help your kid with his knowledge of human biology? This printable will help him with the digestive system.

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

Learn all about the ooey-gooey areas of land called wetlands that provide a home for certain kinds of plants and animals.

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Learn facts about Mars, the great red planet in the night sky. There is more find out about space by answering the question at the bottom of the worksheet.

Constellations are groups of stars that form a picture, usually with a story behind it. But many constellations are also zodiac signs, like Libra, the scales.