Take a plunge under the surface of the earth! With this worksheet as your guide, you may explore the geological processes of our planet.

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

Add some punch to your own doodles with a quick lesson about how to draw light and shadows.

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

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Here's a thorough, easy-to-understand breakdown of the color wheel that includes primary, secondary and tertiary colors.

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

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

One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.

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.

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

Light travels so quickly that sometimes we can forget it even travels at all. Learn all about the direction light travels and perform your own experiment!

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

Read about the mule deer, the most abundant deer in Yellowstone National Park.

The infamous Halley's Comet only comes around once every 75 years or so! Read some interesting info on the world's most famous comet.

Get a light lesson in the darkest of creatures, the raven.

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

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

Learn about the amphibians and reptiles of Yellowstone National Park.

How does our hearing work? Give your child a great guide to the anatomy of our ears with this anatomy worksheet.

Learn the basics of human anatomy with this info sheet all about the bladder. Your child will learn the different parts of the bladder

After your child fills in this review sheet on chemical and physical properties, it's a good idea to hold onto it for future test review!

The brain is the most important organ in the human body. Get a basic grasp on the parts and functions of the brain with this anatomy info sheet.

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

This earth sciences worksheet offers a simple and informative overview to a fascinating geological phenomenon.

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