Invite spellers on an inter-stellar adventure with this fun word scramble puzzle.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

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

What happens to our food after we swallow it? Chomp on some body science with this diagram of the digestive system.

Your child will learn how electricity is made and used by drawing pictures of household products that use electricity to create light, heat, and motion.

Get to know your genes with Steve the savvy scientist! Genes help determine everything from your hair color to your height.

Meet Michael Faraday, the inventor of the first electric motor. Without Faraday, who knows if we would even have working cars, airplanes or even clocks!

For those of you studying human anatomy, here is a great diagram of the major organs in our body!

There's a lot happening beneath the waves, including the ocean food web. Take a closer look with this colorful printable.

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

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

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

If you push your little brother, does he push back? Well, according to Newton's third law of motion, he does!

If your child loves animals, introduce her to a cool species of bird with this Northern Hawk Owl info sheet, complete with coloring and a crossword.

Teach your little scientist the difference between physical and chemical changes, on a molecular level.

Learn the ins and outs of one of the body's most important organs: the heart!

Does your little scientist know the different types of energy? Explore energy with this helpful info sheet!

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

Energy is a crucial part of physical science! All things on Earth have energy, whether it's potential or kinetic.

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!

Discover the function and parts of the human skeleton with this introductory diagram.

Budding paleontologists will refer to a word bank to identify 10 dinosaur-related vocabulary words in this playful word search puzzle.

After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

"The hip bone is connected to the...?" Sing the song perfectly with the help of this worksheet on the skeletal system!