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

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!

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.

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!

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

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.

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

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

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

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.

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

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

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

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

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

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

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

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

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!

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

Children put their science vocabulary to the test with this engaging crossword puzzle!

Experiment with renewable energy from the comfort of home by creating a pizza box solar oven!

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.

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.

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