This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

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

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.

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

This reading comprehension worksheet focuses on Brazil's incredible natural resources, targeting both Earth science and language arts.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

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

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

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

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.

If you think volcanoes are cool, this worksheet will blow your mind! Learn about the rock cycle by reading the paragraph and taking a multiple choice quiz.

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

Budding scientists can learn about an important physical science concept with this worksheet all about density!

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

What is wind energy? Teach your students how we can use the wind to create electricity!

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

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Learn about the amphibians and reptiles of Yellowstone National Park.

Dive into the deep, vast world of ocean science with this introductory sheet on the world's different oceans.

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

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.

Little gardeners, get to know your plants! See the cycle of a plant from its birth to adulthood, and read a bit about photosynthesis too.

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

Take a plunge under the surface of the earth! With this worksheet as your guide, you may explore the geological processes of our planet.

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.