Download this worksheet for answers to our animal reading comprehension series.

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

Pick up some facts about squids, including about the fascinating Giant Squid, and do a bit of writing on this reading comprehension worksheet.

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.

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

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

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.

Little scientists can learn about a fundamental concept of physical science with this worksheet all about density!

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

Learn about the animal practice of hibernation in this quick science worksheet.

Help your second grader understand the different types of weathering and how they can affect the earth.

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

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

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

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

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.

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.

Playing in the dirt was never so educational! Shake things up with this fun experiment about soil.

Learn about the amphibians and reptiles of Yellowstone National Park.

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

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

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.

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

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.

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