Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

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

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

Calling all mad scientists... Electrify your enthusiasm for science! This awesome worksheet will show you step-by-step how to make an electromagnet.

You can find rocks almost anywhere, but there's a lot more to rocks than meets the eye. Check out this science worksheet to learn all about rock formations.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

This Awesome Anatomy coloring page shows how blood circulates through your body.

Check out this Awesome Anatomy page about your voice.

This Awesome Anatomy sheet focuses on the brain, often considered the most vital of vital organs.

Learn all about your sense of smell with this diagram and coloring page.

Learn all about vision and sight with this life science diagram.

Learn about your sense of touch with this Awesome Anatomy page on the nervous system.

Read up on the digestive system with this page, which follows your food from start to finish.

Humans have 32 teeth, including wisdom teeth, and this diagram has the names of all the other 28.

Learn all about cells, the tiny pieces that make up our body, in this color-in diagram.

It's never too early to start teaching your kid about eating right and staying active.

Experiment with renewable energy from the comfort of home by creating a pizza box solar oven!

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

Color in this Awesome Anatomy page on the respiratory system and learn about how we breathe!

Color this Awesome Anatomy coloring page that focuses on how the ears work to hear sound.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

Learn the names of major joints in the human body, the points at which bones intersect to make your arms and legs bend.

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!

Looking for a fourth grade worksheet to help your kid with science? This printable will help with your child's botany vocabulary.

Sink or float? Your kid may be surprised to learn that the density of coke and diet coke aren't the same!

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

Quiz your kid on the names of bones in his spine with this colorful worksheet.

Children familiarize themselves with the tracks of a duck, bobcat, coyote, deer, raccoon, and black bear in this life sciences worksheet.

This fun cut and paste sheet teaches kids about the process an apple tree goes through as it grows.

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!