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!

Read about how the capybara live and other interesting facts about capybara. Sure to satisfy your curiosity about capybaras!

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

Track down some of the most famous animals of the Amazon -- and other places -- with this rainforest coloring page that doubles as a life-science lesson.

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.

You have a lot in common with all the other humans on this planet. You all have noses and arms and fingernails, but what makes you different?

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

Take a trip down to the deep blue sea and learn about the life cycle of a fish! Fish go through the same stages of life as many other living things.

Blue whale facts include that calves weigh up to three tons at birth and adults can be as heavy as 200 tons. Get other cool blue whale facts on this worksheet.

In this worksheet, students will read two different passages about the platypus. Kids will compare and contrast the passages, and identify the main ideas.

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!

In 2012, an 80 million-year-old dinosaur was discovered, and you can learn all about this 20-foot, 2-ton horned herbivore.

This Bandicoot coloring page features two pictures to color of this rabbit-like animal and the opportunity to learn a few fun facts about Bandicoots!

Color the T Rex Leech! Named for its sharp teeth, he is one of many brand new species discovered in the past two years.

So what on earth is this funky creature? He is a Louisiana Pancake Batfish, one of several brand new species discovered within the past two years.

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.

Don't get too afraid of this cockroach, he lives all the way in South Africa! And he is one of many brand new species discovered in the past two years.

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.