Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

Learn about the many different biomes the Earth is home to in this life science worksheet, which holds the answers to some simple life science questions.

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.

Take a peek inside the human eye with this eye-catching worksheet! See a simple eye diagram and learn vocabulary words that will help your kid understand sight.

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

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

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.

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!

Learn step by step how to create a report! Research facts about camels, complete the sentences, then use the sentences to create a report about camels.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

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

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

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

How much does your child know about the animal kingdom? Help her discover interesting facts with this animal crossword.

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

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

Teach your child about an endangered species with this information page, all about the Forest Owlet. They can color as they read some interesting facts.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

These 12 dinosaur names are all mixed up, and need a dinosaur expert to help unscramble the letters.

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

Learn the ins and outs of one of the body's most important organs: the heart!

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

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

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

Learn a bit about the Brazilian rainbow boa with this cool science worksheet.

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

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.