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 some new words and facts about precious minerals with this word-scramble and matching worksheet.

Budding scientists can learn about an important physical science concept with this worksheet all about density!

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.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!

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

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

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

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

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

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

Learn how conductors and insulators affect the flow of electricity in this helpful fourth- and fifth-grade worksheet!

Learn all about essential laboratory equipment with this hands-on worksheet for fourth and fifth graders!

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 the difference between behavioral and physical adaptations with this cut-and-paste worksheet for second and third graders!

Color in the gold and red colors of this common grasshopper species and learn about insect orders with your child!

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

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

Wolves are an animal with a bit of rough past in Yellowstone National Park. Learn all about them!