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

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

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.

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

Find out all about the different parts of the eyes and how they work together to make vision possible.

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

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

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

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

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

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

After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

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

Teach your little scientist the difference between physical and chemical changes, on a molecular level.

Discover some of the fascinating properties of gravity by studying one of Newton's famous laws, the Law of Gravitation.

If you push your little brother, does he push back? Well, according to Newton's third law of motion, he does!

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

Ever wonder what causes lightning to strike? Explore the physics of lightning with this striking physical science worksheet!

This cool physics worksheet helps kids learn how centripetal force and centrifugal force can explain why short track speed skaters don't fall over during turns.

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!

What is the difference between condensation and evaporation? Learn about natural cooling and heating processes that are caused by changing states of matter!

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

Children are introduced to the concept of the speed of light in this illustrated worksheet.

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

In this worksheet, kids learn about basic physics concepts like mass, momentum, and velocity by applying them to a popular winter sport: slalom skiing!

Atoms are some of the tiniest particles that make up our world. Give kids some perspective with this worksheet that shows kids just how small atoms are.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

It's a bird! It's a plane! It's Physics Man! Test your knowledge of the physical world with this fun questionnaire that takes physics to a super-heroic level.

We all know the famous equation E = MC^2. But what does it mean? Learn a bit more about Einstein's famous energy equation with this physical science worksheet.