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

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

Can you explain why your blue shirt is blue? This worksheet is full of facts about light and how it reacts with objects to give us the perception of color.

Need a colorful way to impress your friends and family? This worksheet has got you covered!

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

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

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.

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

Teach your child the difference between potential and kinetic energy with this introductory worksheet.

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

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!

This is not your average coloring page. Using only the three primary colors, mix your paints together to form as many colors as possible.

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

Without reflective surfaces, this biker would have a much more dangerous ride. Can you find all five reflective surfaces present in this scene?

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

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!