Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

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.

Kids will learn about fossils in this worksheet. Help your child learn about the scientific method by getting him to examine a fossilized dinosaur skeleton.

Learn about the black bears of Yellowstone National Park.

Learn about the cardinal, the West Virginia state bird.

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

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 all about the Mountain Bluebird, Idaho's state bird.

Learn all about Delaware's state bird, the Blue Hen Chicken.

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

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

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

Learn about life science on a farm in this colorful activity!

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 about Iowa's Eastern Goldfinch, a small bird with bright yellow feathers.

Learn about the numbat, a squirrel-like creature from the Australian outback.

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.