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

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

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

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

Learn about the "dwarf planet" in our solar neighborhood. There are more Pluto facts to learn, if you figure out the answer to the question on the page.

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.

Learn about the black bears of Yellowstone National Park.

Learn the science of volcanic eruption with this cutaway diagram

Learn about the badgers that live in Yellowstone National Park.

Learn about the Uinta ground squirrels of Yellowstone National Park.

Learn about the grizzly bears that live in Yellowstone National Park.

Children will learn important facts about food chains in these worksheets.

Learn about the amphibians and reptiles of Yellowstone National Park.

Learn the importance of natural adaptations with this inquisitive activity!

Learn about the science behind one of nature's most awesome spectacles: monsoons.

Learn a little about the constellation called Cancer the crab with this constellations worksheet.

Learn a bit about the Brazilian rainbow boa with this cool science worksheet.

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

Learn how seeds move with this second- and third-grade matching activity!

Learn all about the science of the movies and the basic concepts behind how they work.

Learn about Yellowstone Park's lynx, the cats that put your average house cat to shame.

Help your budding geologist learn about these common landforms in this worksheet on peninsulas and capes.

Did you know "Delphinus" is Latin for "dolphin"? Learn all about this cool constellation with this worksheet!

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

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

Learn about the life cycle of a tomato plant in this worksheet for second and third graders!