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!

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

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

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

Dr. McSquare needs help sorting out his lab reports. Can your child read each item, then label it with the correct scientific method step?

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

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.

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.

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.

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

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

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

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

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.

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

Get a brief history of the atom with this introductory page for young physicists!

The periodic table of the elements is full of helpful information. Figure out how to read the periodic table with this helpful guide.

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

The periodic table of the elements is an important classification system of the most basic particles that make up our world!

Sink or float? Your kid may be surprised to learn that the density of coke and diet coke aren't the same!

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

Energy is a crucial part of physical science! All things on Earth have energy, whether it's potential or kinetic.