Complete this simple and engaging exercise about the planet Mars by reading the information and labeling Mars' layers using what you've learned.

Wondering how to explain photosynthesis to a kindergartener? Here is a worksheet that explains how plants grow through a simple picture.

Sometimes your senses can play tricks on you. Experiment with your sense of taste and your sense of smell with this simple experiment!

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

Would you put your swimsuit on when it's snowing outside? Let your child decide with this simple categorization worksheet

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.

In this worksheet, children identify and illustrate four things all plants need to grow. They then answer three simple research questions about plants.

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.

Your child can make her own sun mosaic out of simple materials you most likely have lying around the house, such as tissue paper and construction paper.

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!

This Earth maze features a cool globe design. Perfect as an Earth Day activity, our Earth maze gets your child to consider our home planet.

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.

Label the parts of a butterfly in this butterfly diagram worksheet!

With this science experiment, kids can get hands-on planting beans and watching them grow. All you need are beans and some household items to grow a bean plant!

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 the basic structure of an atom with this introductory page, complete with a fun experiment they can try at home!

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.