There are some parts of our brains that are still too complicated for scientists to understand! Find out the basics of the brain's functions with this fun page.

This colorful diagram is a handy reference guide for kids learning basic body systems.

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

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

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.

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

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

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.

This lizard can grow to over six feet long! Color the Golden Spotted Monitor Lizard, one of several brand new species discovered between 2009 and 2011.

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.

Looking for a worksheet that will give your kid help with his life-science skills? This printable will challenge his knowledge of birds.

Young astronomers unscramble words to reveal the heavens in this fun space science worksheet.

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!

Learners will discover a simple overview of the human muscle system in this introductory worksheet.

Can you match the scientist with the unit of electricity or power that is named after him?

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

Young botanists test their plant know-how with this quiz.

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

Learn how conductors and insulators affect the flow of electricity in this helpful fourth- and fifth-grade worksheet!

Discover examples of weathering, erosion, and deposition with this fourth-grade worksheet!

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Detect animal defenses in this hands-on worksheet for kindergarteners through second graders!

Get charged up about static electricity with this informative fourth- and fifth-grade worksheet!

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

Practice describing different objects and substances in this colorful worksheet!

Learn how seeds move with this second- and third-grade matching activity!