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

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Can melted wax turn back into solid wax? Can scrambled eggs turn back into raw eggs? Learn the answers to these questions and more with this second-grade worksheet about reversible and irreversible changes!

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

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

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

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 manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

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.

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

Who will win the marble race in this two-page physical science worksheet?

What is wind energy? Teach your students how we can use the wind to create electricity!

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

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

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

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

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

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

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

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

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

Warm up your scientific thinking with this colorful worksheet!

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

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