Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

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

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

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

Have your little chemist think about the properties, or characteristics, of metals. What makes them different than non-metals?

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

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

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

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Magnets are fun to play with, but how do they actually work? Have your child circle the objects he thinks the magnet will attract.

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

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

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!

Are students studying electricity? Give them a break from the scientific nitty-gritty with this fun word search full of electricity terms!

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

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

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

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

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.

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!

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

Looking for a worksheet to help with your kids science vocabulary? This printable is about science around the house.

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

Use this worksheet to help teach your preschooler what everyday things use electricity to function.

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

Learn about drag, air resistance, and Newton's laws with this cool worksheet on bobsled physics!

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

Explore magnetism with this colorful science worksheet for third and fourth graders!

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.