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.

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

Children label the eight planets of our Solar System in this simple astronomy worksheet.

Teach your kids all about the second planet from the Sun with this simple science sheet.

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

Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

Learn about the many different biomes the Earth is home to in this life science worksheet, which holds the answers to some simple life science questions.

Start from water cycle precipitation from clouds and match parts of the cycle to this clear colorful image of a simple water cycle, using the helpful paragraph.

Take a peek inside the human eye with this eye-catching worksheet! See a simple eye diagram and learn vocabulary words that will help your kid understand sight.

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.

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!

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.

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.

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.

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

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

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

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

The next time your parents ask you to wash your hands before dinner, read this worksheet about Joseph Lister and take their advice!