Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

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.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

Here's an introduction to different types of rocks.

Ever wonder what's inside a camel's hump? Your child will become familiar with animals that live in the desert with this fun activity sheet!

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.

Looking for a fourth grade worksheet to help your kid with astronomy? This printable will help him learn the relative sizes of planets.

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

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

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

Use this cool 2-page worksheet to make your own big dipper clock!

Meet Michael Faraday, the inventor of the first electric motor. Without Faraday, who knows if we would even have working cars, airplanes or even clocks!

If you're looking to color a chimpanzee, you won't find a coloring page better than this one. Learn some facts about these animals while you're at it.

Does your child have a knack for astronomy? Teach him about the constellations with this great worksheet.

Many legends told by ancient people have characters that you can find as star formations called constellations! This one is Andromeda.

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

Blast off into space with a fun planet printable. This one features Jupiter, the largest planet in our solar system.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.

What does the Earth look like? Find out all about the nooks and crannies that cover the planet with this landforms worksheet.

Celebrate the fall season with this nature sketchbook, perfect for any lover of the outdoors!

Learn all about rollie pollies, a small but unique creature that always fascinates little kids. There's even a bit of rollie pollie match to boot.

Do you know what's the largest parrot in Africa? It's the African grey parrot! Learn about this blabbering bird and give the image some color.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

Educate your budding scientist about fossil fuels with this worksheet about non-renewable energy.

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.