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

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.

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.

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

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

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.

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

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.

Learners will get to know the bald eagle, the national bird of the United States and an inhabitant of Yellowstone National Park.

Where is the Earth in space? Check out this worksheet that describes where weÃand some of our neighborsÃare in our galaxy.

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

Encourage your little environmentalist to learn about composting! Children will boost their reading skills as they learn what compost is and how it helps the environment.