A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

Did you know cougars can leap 20 feet from a sitting position? This fun worksheet is jam-packed with fun facts about the cougar!

Ocean resources are an incredible part of how we live our lives; read and write about them with this worksheet.

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.

Can't go to the zoo? We bring the zoo to you! Check out the fulvous whistling duck, a bird with social skills and the willingness to share each other's nests.

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.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

Help your 2nd grader crack the code using triple digit addition and subtraction to find out what parts of camels can be used to make some tasty dishes.

This fun worksheet is jam-packed with fun facts, a word search and trivia questions, all about the baboon!

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Is it true that male seahorses get pregnant? Find out with this fun, fact filled worksheet, all about seahorses!

This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

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

Don't be crabby! This worksheets introduces your child to a fascinating crustacean. Fill in the anatomy of a crab using the numbers in the word bank.

Aspiring astronomers, here is a wonderful introduction to the constellations! Your child can learn about Aries the ram with this worksheet.

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

Challenge your child's knowledge of astronomy with this space-themed worksheet, which focuses on the timing of cosmic events.