What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

The animal names on this third grade science and spelling worksheet are all mixed up! Kids unscramble reptile and bird names to complete the worksheet.

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

This packet of worksheets introduces children to food webs, an important life science concept.

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

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.

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

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.

Discover some fun facts about the sun — and bring it to life with color — with this astronomy worksheet!

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.

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

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.

Not your typical crossword, this puzzle will have your child learning to recognize the shapes of the continents. Great for map skills and vocabulary!

Here's an introduction to different types of rocks.

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

How many machines can you find around the house? You may find them where you least expect it!

Budding inventors can get a fun review of the simple machines with this word search.

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

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

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.