For 140 million years giant dinosaurs called sauropods roamed Earth. Help students investigate the success of the largest land animals ever with this practical and printable exhibition guide for educators.
Solving math equations, reading books, even thinking about thinking, the brain's abilities are amazing. But it can be fooled. Find out how with these fun and easy experiments.
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.
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.
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.
Which has more oxygen: ocean water that has been aerated by turbulence, or bay water that has been fed by oxygen-producing plants? This ninth-grader from New Jersey learns that getting the answer is not all that easy!
At 1,292 feet (394 meters) below sea level, the Dead Sea is the lowest point on Earth. But it's not the depth but the sea's saltiness that buoyed the imagination of this seventh-grader from New York.
Set your alarm for 2 a.m., and trek along with this 11th-grader from Pennsylvania on the 102nd Christmas Bird Count. You'll start the day at Mingo Creek County Park. Be sure to wear a hat!