When you look down at a spider crawling on the sidewalk, do you know what you're looking at? Find out with this illustrated guide to the parts of a spider.

What does it take to create realistic exhibits like the ones featured in Night at the Museum? Meet the exhibition project manager who's in change of the Museum's dioramas.

A twig is just a twig—or is it? You can identify a plant, tree, or shrub just by closely observing one small part of it. After this activity, you'll never again dismiss a twig.

Test your classification skills with this leafy challenge. Examine drawings of 12 oak leaves, and see if you can determine the common and scientific name for each one of the dozen.

Can you name the mystery arthropod named for its hundred-some legs? More important, do you know what physical and behavioral characteristics it shares with a shrimp or honeybee?

Earth's climate is changing, and according to scientists today's kids will bear the brunt of the potentially damaging affects of a warmer world. Find out how scientists are preparing now for the potential negative consequences.

"Greenhouse effect" and "global warming" are becoming household phrases but how, exactly, are they linked? Explore the interconnections and consequences of climate change.

What can you tell from looking at a fossil record of dinosaur footprints? Everything from which dinosaur was there first to what they might have feasted on.

What's the size of your desk in relation to your teacher's? Or to the chalkboard at the front of the room? Hone your mapping skills with this classroom activity.

Some scientists believe the fate of humankind was changed when humans first began to tame the wild horse. Learn more about how horses have shaped our world.