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

How fast does sound travel? Help your child figure out the physics of sound waves with this informative worksheet.

If your scientist is mad for magnets, let him explore a few fun facts about magnetism with this physics page!

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

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

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

Our understanding of the atom has changed over the past few hundred years! Read about a few different theories on the structure of an atom.

Increase your child's vocabulary and knowledge of the scientific world around him with a single sheet!

Educate your budding scientist about fossil fuels with this worksheet about non-renewable energy.

Children hone their powers of observation using this worksheet template.

Arm your budding physicist with a free print-out version of the periodic table of the elements!

Test your knowledge of the periodic table of the elements with this quiz page!

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

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

Review energy terminology with this fun fourth-grade crossword puzzle!

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

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

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

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

Teach your child how we measure temperature with these printable thermometers!

This physics of figure skating worksheet teaches kids about angular momentum and moment of inertia by using the example of a spinning figure skater.

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

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

Explore magnetism with this colorful science worksheet for third and fourth graders!

Practice describing, or classifying, different items by their properties in this inviting worksheet!

Strengthen your understanding of forces with this kindergarten worksheet!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Test your knowledge of conductors and insulators in this hands-on worksheet!

Your knowledge of static electricity doesn’t need to be static—discover how it works in this engaging worksheet!