Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Discover the details of desert plant life in this informative worksheet!

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

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

Study the traits of desert plants with this cut-and-paste worksheet for kindergarteners and first graders!

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

Explore a tropical rainforest habitat and its inhabitants with this engaging worksheet for third graders!

Discover what lives in the depths of the sea in this second- and third-grade habitat 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.

Help your 2nd grader write out fractions in this underwater adventure.

Introduce the concept of photosynthesis to young learners with this coloring page and simple diagram.

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

This packet of worksheets introduces children to food webs, an important life science concept.

This page celebrates the Louisiana state bird, the Brown Pelican!

Read about the small population of huge moose in Yellowstone National Park.

Get a light lesson in the darkest of creatures, the raven.

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

For little gardeners everywhere, here's a fun coloring page that doubles as a planting guide for carrots!

Try planting your own lettuce plants with this helpful gardening sheet that doubles as a coloring page!

Introduce your budding gardener to a few fun fruits with a coloring page that doubles as a planting guide.

This coloring page pays tribute to the roadrunner, the official New Mexico state bird.

This coloring page is all about Georgia state bird, the Brown Thrasher.

The Ohio state bird, the Cardinal, is famous for their bright red color. Can you give this one some color?

Whoa, this spider is quite the spinster! He is actually one of many brand new species discovered between 2009 and 2011.

Color in the under the sea scene featuring this cute sea turtle as he fishes for food at the bottom of the ocean!

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

Get to know North Carolina state bird, the Cardinal, famous for their bright red color.