Milky Way: candy bar or galaxy of 100 to 400 billion stars?

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

From glaciers to mountains to wetlands, our planet has lots of different landforms. Help your child learn all about them with this fun earth science crossword.

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

Flex your mind muscles with a body science worksheet! Your child will learn the fundamentals of what makes up our muscles.

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

As your child matches up the body systems vocabulary with the correct definitions, she'll boost her life science knowledge and have fun doing it!

Learn Saturn facts with this science printable, like that it is one of the large gas planets in our solar system!

Review the different body parts with a fun crossword! This is a great way for your little doctor-in-training to review the basic organs and their functions.

Kids find desert animals in this science word search. Animal habitat worksheets help students learn about life forms in different environments.

Let your child explore the vocabulary associated with Earth's landforms with this colorful word search.

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

Third grader today, astrophysicist tomorrow! Let your child research their planet of choice, and discover everything from the number of moons to temperature.

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

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

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

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

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

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

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

Children discover and review the parts of a flower and what they do as they complete this botany-themed crossword puzzle.

Celebrate the fall season with this nature sketchbook, perfect for any lover of the outdoors!

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

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.