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

Learn more about molecules and how they comprise the air all around us in this intro-to-earth-science worksheet.

Ever wonder why sounds change as they move away from us? Learn all about the Doppler effect with this physics worksheet.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

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.

Practice diagramming atoms and using the periodic table to pull information about atoms with this quiz page.

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

Can you explain why your blue shirt is blue? This worksheet is full of facts about light and how it reacts with objects to give us the perception of color.

Hiccups interrupt us when we're talking and sometimes even get in the way of eating! Find out why we hiccup and discover some unusual ways to get rid of them.

Budding biologists can learn all about human digestion with this information page, complete with a diagram of the digestive system.

Introduce your student to an endangered species, Przewalski's horse, with this information sheet. They can color the illustration as they read.

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

The periodic table of the elements is full of helpful information. Figure out how to read the periodic table with this helpful guide.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

Teach your child about an endangered species with this information page, all about the Forest Owlet. They can color as they read some interesting facts.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Practice using the periodic table to calculate the number of neutrons in the atom of an element.

When we get embarrassed or anxious, and all of a sudden our cheeks get red! Why does our body do this? Find out what scientists think blushing is all about.

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

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

Learn all about the liver with this anatomy sheet. Our liver is one of many organs in the digestive system expelling waste from the body.

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

Learn all about how we breathe with this info sheet about lungs. Your child will learn the different parts of the lung, including terms and concepts.

Does your child know his five senses? Give him an introduction to human anatomy with this sense of touch worksheet.