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

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

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.

Ready to make a body outline? This seriously fun project will give kids some big insights into the important systems that make up their bodies!

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

This worksheet gives your fifth grader some skeleton know-how, as she fills in the diagram with the bones from the wrist to the fingertips.

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

Kids will cut out the various functions listed at the bottom of this kidneys and intestines worksheet and match them to the correct organ.

Teach your fifth grader about this important bony structure with a fill-in-the-blank skull diagram.

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

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

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

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!

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

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

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

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

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

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

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.

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

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.

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

Expand your sea creature vocabulary with this Life in the Reef worksheet!

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

Review the different body parts with a fun crossword! This is a great way for your little doctor-in-training to review the basic organs and their functions.