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

Learn about the animal practice of hibernation in this quick science worksheet.

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.

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

Learn the many features of planet earth in this easy earth science vocabulary chart.

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.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

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.

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

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.

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

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

Change up your regular classwork with this hands-on science worksheet!

See which snail has gotten the farthest with this 2nd grade measurement snail race worksheet.

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.