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

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

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

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

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

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

Sometimes measuring liquids scientifically is tricky. Give your budding scientist some practice, by reading measurements on graduated cylinder illustrations.

Little scientists can learn about a fundamental concept of physical science with this worksheet all about density!

Your child will learn how electricity is made and used by drawing pictures of household products that use electricity to create light, heat, and motion.

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!

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

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

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

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

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

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

Kids draw examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Learn all about the science of the movies and the basic concepts behind how they work.

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

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Teach your child how we measure temperature with these printable thermometers!