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.

This worksheet teaches your child about physical properties of water, specific heat, kinetic energy and more.

Introduce the basic concepts of sinking and floating with this fun worksheet. Your little one will decide which objects sink, and which ones float!

When we push or pull an object, we exert force on it. Get your child thinking about force by challenging him to describe how each person is exerting force.

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Budding inventors can get a fun review of the simple machines with this word search.

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

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

Does your child know where Earth is in the Solar System? He'll learn as he completes this fun, planet printable.

Test your students' knowledge and memory of periodic table elements with this crossword puzzle.

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

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

Can your child tell what will be attracted by a magnet? Challenge him to think about why magnets attract certain objects.

Learn the basic structure of an atom with this introductory page, complete with a fun experiment they can try at home!

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

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!

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

A handy worksheet that breaks down the properties of metal. A good physical science review sheet to keep around for reference.

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

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

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

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Learn some basic chemistry with this worksheet about the universal solvent: water. Find out why water is called the universal solvent.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Budding scientists can learn about an important physical science concept with this worksheet all about density!

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

Learn all about how to convert kilograms to pounds in this weight conversion worksheet.

Learn all about how to convert centimeters to inches in this practice worksheet.

What is energy? Energy is the ability to do work! Use this colorful worksheet to teach your little scientist the basics of energy.

Find out how colors work with an intro to the color spectrum. Kids will investigate the seven colors of the rainbow and do a color wheel experiment.