From nature hunts and rock painting to recycled art and poetry writing, these activities combine scientific exploration with arts and crafts projects.

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

Invite budding naturalists to sharpen their observation skills with this colorful, printable scavenger hunt.

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

Learn about the amphibians and reptiles of Yellowstone National Park.

You can find rocks almost anywhere, but there's a lot more to rocks than meets the eye. Check out this science worksheet to learn all about rock formations.

Learn about the black bears of Yellowstone National Park.

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

Wolves are an animal with a bit of rough past in Yellowstone National Park. Learn all about them!

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

Here's a great introduction to five famous astronomers for kids. See who got the star party started with this worksheet.

Learn about the great horned owl of Yellowstone National Park, a bird so big and mean that it has the nickname, "tiger owl."

Learn about the grizzly bears that live in Yellowstone National Park.

Read about the small population of huge moose in Yellowstone National Park.

Grab your trusty flashlight and get ready for a scientific treasure hunt!

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.

Can you explain why your blue shirt is blue? This worksheet is full of facts about light and how it reacts with objects to give us the perception of color.

Even colors have best friends. In the world of color, these best friend pairings are called complimentary colors.

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!

Need a colorful way to impress your friends and family? This worksheet has got you covered!

Learn all about Alexander Fleming, the man who invented penicillin and the happy accident that brought him to it.

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

These flash cards serve as an intro to life science, but also help with counting skills and sequential ordering.

Practice naming the planets in our solar system with a fun, visual worksheet! Your child can see the planets in their orbits and try to label each one.

Little gardeners, get to know your plants! See the cycle of a plant from its birth to adulthood, and read a bit about photosynthesis too.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

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

Children match animals to their ecosystems in this life sciences worksheet.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.