What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!

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.

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

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

Read about one of Yellowstone National Park's coolest animals, the big horn sheep.

Learn about Red River Hogs in this series of animals facts sheets and coloring pages in one.

The next time you're on a hike, be sure to take this leaf chart to guide you in identifying different types of leaves!

The next time your parents ask you to wash your hands before dinner, read this worksheet about Joseph Lister and take their advice!

Coyotes' famous howl gave them the nickname "song dogs." This is just one of several coyote facts your child can learn from this worksheet.

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.

All the animals in this word search share one characteristic: none of them have bones! Can your child find the boneless critters hidden in the puzzle?

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

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 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.

Learn about spider tortoises, one of the world's tiniest tortoise species, with this handy worksheet. Can't go to the zoo? We bring the zoo to you!

Did you know an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

If you're looking to color a chimpanzee, you won't find a coloring page better than this one. Learn some facts about these animals while you're at it.

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.

Learners will get to know the bald eagle, the national bird of the United States and an inhabitant of Yellowstone National Park.

Be a busy bee as you learn all about the different jobs honey bees have in their hives!

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

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

Discover the importance of butterflies in pollination with this informative worksheet!

Learn the importance of natural adaptations with this inquisitive activity!

Looking for a worksheet that will give your kid help with his life-science skills? This printable will challenge his knowledge of birds.

Discover how plants survive in the desert with this third-grade habitat worksheet!

Unearth fossils in this explorative third-grade worksheet!