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.

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.

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

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.

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

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

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

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

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.

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

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Did you know that your tongue is one of the strongest muscles in your body? Tickle your learning taste buds with this worksheet all about your tongue.

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

Looking for a fun way to supplement your child's science learning? Try out a life science crossword puzzle! This one's all about ecosystems.

Crossword puzzles are a great way to make life science learning fun. This one's all about natural selection, and it's sure to give your child a fun challenge.

This short nonfiction text will provide students with an opportunity to become more comfortable with identifying and defining academic vocabulary words—and they'll have fun learning all about the life cycle of a chicken in the process!

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Teach your kids all about the second planet from the Sun with this simple science sheet.

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

Help kids understand the size and scope of billions of years with this helpful reference worksheet.

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

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

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