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.

Your kids will have a blast making a mess while they build important science and reading skills. So roll up your sleeves and dig in to this week's ideas!

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.

Dig your hands into some earth science with this soil sheet! Your little scientist can hone his reading skills as he learns what soil is and how it is formed.

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

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

A fill-in-the-blank exercise on tornadoes, made for fifth grade science students.

Looking for quiz questions to test your first grader's general knowledge? This printable will challenge your kid's overall knowledge.

Looking for a worksheet that will give your kid practice naming the parts of the body? This printable is perfect for beginning readers.

Looking for a collection of questions to quiz your kid's overall knowledge? This printable will challenge your kid's overall knowledge.

This worksheet is a collection of questions that will quiz your kindergartener's overall knowledge?

These math cards are printable quiz cards to challenge your first grader's overall knowledge.

What's better than coloring and learning at the same time? Here's a great informational sheet on koala bears that doubles as a coloring page!

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.

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

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

Pick up some peafowl facts on this worksheet with vibrant illustrations. Little ones will read about different types of peafowl and answer some questions.

The earth is always changing and moving.Learn all about weathering and erosion with this worksheet.

Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

Jump-start your kid's excitement about kangaroos! Together, you can learn some cool kangaroo facts, like how kangaroos can jump up to 30 feet.

What's in the ground beneath our feet? Explore the science of soil with your child using this handy printable!

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

The Goliath birdeater is a spider that lives in South America. Your child will read a paragraph about spider before writing an opinion sentence.

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

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.