Taiwan may be a small island, but it's home to more kinds of butterflies than any almost other place in the world — about 400 species have been discovered by scientists. Find out why.
Whether 4.5 billion or 900 years old, every rock has a story to tell, giving us clues about the history of the Earth. Explore these stories by looking at igneous, sedimentary, and metamorphic rocks.
Sauropods dominated the Earth for 140 million years. How did they reach their massive sizes? What did they look like, how did they move, and what did they eat? Enter the lab to discover the answer first hand.
Do you have what it takes to go on a space mission to the Red Planet? Take this quiz to find out!
Yellowstone National Park lies above a stationary hotspot deep in Earth's mantle. See how previous volcanic eruptions of the hotspot have left a trail of calderas that ends, at the moment, with Yellowstone.
The butterfly begins life as an egg, emerges as a caterpillar, and then undergoes a complete change in body form during development.
Go beyond the basics of field study—use math and science skills and dig in the dirt! Students learn how to count plants as part of a study of local biodiversity and calculating biodiversity indexes.
You can't see the Sun's ultraviolet rays with your eyes—you just see their results on your freckled, tanned, or sunburned skin. Build a bracelet that immediately detects these invisible rays.
When does mixing every color under the rainbow create pure white rather than a murky brown or black? When light, not paint, is the medium—and you're subtracting, not adding, color.
Are those sharp, pointy dinosaur teeth all the better to eat you with? Or are they designed for tough vegetation? Examine dinosaur teeth as a paleontologist would.
It probably comes as no surprise that telescopes do a better job of collecting light and observing outer space than your eyes. But do you know why? (Hint: the answer is NOT magnification!)
Living on land as we do, it's easy to forget this is a water planet. Yet life appeared about 3.5 billion years ago in the ocean, and instead of leaving, most things stayed there.
When in comes to breathing under water, marine organisms breathe in different ways. Some absorb oxygen through their skin, some rely on gills, and others gulp air into their gas bladders.
Hands-on Activity, Classroom Activity
Natural selection plays a large role in the evolution of a species. The following activity demonstrates this concept.
It's not what they ate or when they lived that distinguishes dinosaurs from other reptiles. It's the hole in their hip socket. Find out how this feature affected the way dinosaurs walk.