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

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.

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

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

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

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

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!

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.

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

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

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

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Cells are the building blocks of all living things! Help your little scientist learn the basics of a cell with this fun activity.

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

Give your budding chemist the facts and practice she needs for measuring with graduated cylinders.

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.

Help your child practice her spelling and vocabulary with this fun worksheet! Discuss with your child what it means to be cold-blooded.

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

There are a lot of structures that make up a new plant, called a seedling. Your child will learn what they're called with this life science word search.

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Stretch your backbones and learn about the creatures that have a spine and those you don't!

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

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

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!

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.