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!

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

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

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

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

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

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

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

Are students studying electricity? Give them a break from the scientific nitty-gritty with this fun word search full of electricity terms!

Your child will learn how electricity is made and used by drawing pictures of household products that use electricity to create light, heat, and motion.

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

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!

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.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

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.

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

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

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

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.

Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

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