This worksheet helps kids understand variations in animals and how the same kind, or species, can sometimes look different from each other.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

Just like people, animals have babies that grow up into adults. On this worksheet, Kids draw a line to match each baby with its adult version.

Here's a great introduction to five famous astronomers for kids. See who got the star party started with this worksheet.

This colorful diagram is a handy reference guide for kids learning basic body systems.

How do these animals blend with their surroundings? Enjoy this match-up activity on animal camouflage for kids!

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

Find out how colors work with an intro to the color spectrum. Kids will investigate the seven colors of the rainbow and do a color wheel experiment.

This mix-and-match lists examples of natural resources. Kids can connect the natural resource with the resulting product.

This worksheet uses a paper bird to demonstrate center of gravity, and practices following directions and fine motor skills.

For kids learning geography or earth science, this is the perfect review sheet for drilling students on common geography terms and phrases.

Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Share a star-gazing session with your little astronomer! This constellation chart is full of fun stories about the different groups of stars.

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.

Get wise about wind! Even though you can't see it, wind is a powerful force caused by changing temperature in the air.

Plants need to breathe and eat food (energy) just like us! Help your budding naturalist to learn about photosynthesis.

Does your first grader want to know more about mammals? This worksheet gives her a chance to do some research to decide which animals fit into that category.

Here's a thorough, easy-to-understand breakdown of the color wheel that includes primary, secondary and tertiary colors.

Boost your second grader's knowledge of space with this fun worksheet, which will have her unscrambling the answers to planetary trivia.

Have fun learning about food chains in this charming science worksheet!

Tree climbers and tree huggers alike, learn the basics of reading tree rings to find out about the life of a tree.

Build nature vocabulary with this habitat-matching worksheet!

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

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

Have some fishy fun by learning both the common and scientific names of different fish! Add color to the underwater scene.

For all you aspiring astronauts, here is a worksheet for learning the constellations! Learn all about the constellation Gemini with this sheet.

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.

Dig up some earth science learning with this printable, and turn your next hike or beach excursion into a lesson in soil science!