Next time you head outside for a hike or a camping trip, bring along this checklist of animal tracks!

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

Get charged up about static electricity with this informative fourth- and fifth-grade worksheet!

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

Get to know the Apollo 11 space mission in this science and history worksheet!

Get lost with a dizzying maze that challenges you to help the lightning bolt reach the ground!

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

Does your budding biologist know his plant parts? Get a great review of some important plant vocabulary with this info page.

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

Get to know the residents of the reef with this coral reef-themed crossword, perfect for expanding life science knowledge and working on vocabulary, too!

Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

Get in tune with nature, and read a bit about an endangered species of animal, the Black-footed Ferret. Your child can color an illustration as he reads.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Be a glow-getter with this energy transfer worksheet!

Study the night sky with this hands-on science worksheet for third and fourth graders!

Have you considered why elephants have trunks, or why polar bears have thick fur? Reflect on animal adaptations with this fourth-grade worksheet!

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Here's a crazy thought experiment for you. Imagine you could create a monster made out of electricity!

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

Ever wonder why zebras have so many stripes? Find out with this fun worksheet all about the zebra!

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

Pheww! What is that stinky smell? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about skunks!

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

Did you know you're 1,000 times more likely to drown than you are to be bitten by a shark? This fun worksheet is jam-packed with fun facts about the shark!

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!