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

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

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!

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

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

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

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.

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

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

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

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

Explore everyday forces with this first- and second-grade science worksheet!

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

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

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

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

Children hone their powers of observation using this worksheet template.

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.

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!

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

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

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.