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

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

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!

Looking for a worksheet to challenge your child's knowledge of science? This printable asks him to identify a solid, liquid and gas.

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

Brush up on some physics vocabulary with this energy word search!

Does your little scientist know the different types of energy? Explore energy with this helpful info sheet!

Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Teach your child the difference between potential and kinetic energy with this introductory worksheet.

Science can be a bit of a bore to some students, but with this quick worksheet on chemical and physical reactions, it can at least be a breeze.

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

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

When we push or pull an object, we exert force on it. Get your child thinking about force by challenging him to describe how each person is exerting force.

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

This worksheet teaches all about the planet Saturn and its placement in the Solar System.

What is wind energy? Teach your students how we can use the wind to create electricity!

Does your child know where Earth is in the Solar System? He'll learn as he completes this fun, planet printable.

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Kids draw examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.