Use this Inside-Out Anatomy worksheet to learn about the digestive system.

Learn how seeds move with this second- and third-grade matching activity!

Learn more about the mysterious brain and how it works with this brain anatomy worksheet.

Learn about your sense of touch with this Awesome Anatomy page on the nervous system.

Use this heart anatomy sheet to learn all about your heart and how it works.

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

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

Learn about the life cycle of a tomato plant in this worksheet for second and third graders!

Learn about Yellowstone National Park's peregrine falcons, which survived heavy pesticide use in the 1960s.

Learn about the second fastest land mammal in the Western Hemisphere, the pronghorn antelope.

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

Learn about bison, some of biggest creatures in Yellowstone National Park, or anywhere else for that matter.

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

Learn all about cells, the tiny pieces that make up our body, in this color-in diagram.

Learn more about the skin (and the science behind pimples -- ew!) in this printable life science diagram.

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

Learn the scientific names of this popular flower and its partner, the grasshopper, with this fun coloring sheet!

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

The best way for your young explorer to learn and understand how nature works is by going outside!

Stretch your backbones and learn about the creatures that have a spine and those you don't!

Your nature lover can learn the basics of drawing a tree with this simple step-by-step guide.

Learn about Yellowstone Park's lynx, the cats that put your average house cat to shame.

Learn about the life cycle of a wood frog in this second- and third-grade worksheet!

Plants may not have feet, but they do move! Help your child learn different ways seeds travel.

How do you make recycled paper? Learn all about the recycling paper process on this informative worksheet.

The narwhal is one unusual animal! Your child will learn about this horned sea creature through text and pictures.

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

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

Learn about the integumentary system, which is really just a fancy phrase for "skin", in this worksheet.