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!

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

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!

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

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

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

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

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

This worksheet teaches your student about physical change vs chemical change, matter, mass, and property. An exciting experiment reinforces the concepts.

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

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

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

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

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

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.

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

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

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

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

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

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

Sometimes measuring liquids scientifically is tricky. Give your budding scientist some practice, by reading measurements on graduated cylinder illustrations.

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.

What is energy? Energy is the ability to do work! Use this colorful worksheet to teach your little scientist the basics of energy.

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.

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

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.