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

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

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

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

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.

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

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

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

Find out the the cool science behind ice cubes with this fun worksheet.

This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

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

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

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

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

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

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

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