Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

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

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

Learn about pearls, which seem like normal jewelry from a factory but are actually made from the mucus of mollusks!

Learners will discover a simple overview of the human muscle system in this introductory worksheet.

Where do flower babies come from? Find the answers in this word search about plant reproduction!

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

Learn the ins and outs of one of the body's most important organs: the heart!

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.

Discover the impact of water on Earth’s landscape with this fourth-grade erosion worksheet!

Find out everything you need to know about lightning rods! These metal poles have quite a special relationship with lightning.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Discover how water flows in this informative environmental science worksheet!

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Young botanists test their plant know-how with this quiz.

Discover how dolphins use sound to see in this fascinating worksheet!

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

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.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!

Learn all about the science of the movies and the basic concepts behind how they work.

Learn how conductors and insulators affect the flow of electricity in this helpful fourth- and fifth-grade worksheet!

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

Ready for a truly electrifying lesson in science? Find out how electricity forms and what makes a lightning bolt!

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

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