Investigate the mystery of why two tomato plants developed so differently!

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!

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

Humans have 32 teeth, including wisdom teeth, and this diagram has the names of all the other 28.

Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Dinosaurs and other creatures don't exist anymore! Learn the names of some extinct animals, and look for them in this fun wordsearch puzzle.

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.

In this worksheet, children practice identifying animals of North America by their tracks.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Uncover secrets of the past with this third-grade worksheet about fossils!

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

These are the largest tortoises in the world, yet they are only two inches long when they hatch! That's one of the facts you can learn from this worksheet.

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

Some people think alligators and crocodiles are the same, but there are some distinct differences. Check out this cool worksheet to learn what they are.

Dig into the past with this third-grade worksheet all about fossils!

With this enlightening worksheet, kids will get a glimpse into how our brains' different parts function in surprising ways.

Kids will cut out the various functions listed at the bottom of this kidneys and intestines worksheet and match them to the correct organ.

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Color in this Awesome Anatomy page on the respiratory system and learn about how we breathe!

Learn about the Uinta ground squirrels of Yellowstone National Park.

Sit down for a fun science lesson with Steve the savvy scientist as he teaches you all about dominant and recessive genes!

Budding paleontologists will refer to a word bank to identify 10 dinosaur-related vocabulary words in this playful word search puzzle.

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Budding botanists can master the different parts of a seed with this helpful diagram!

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

This bright and colorful worksheet helps your child bring the technical terms of the bones in his legs down to size.