History's Mysteries II
Dinosaurs of many kinds roamed Earth for hundreds of millions of years. Then, over a relatively short period of time, they disappeared. Why? Chasing clues is one of the greatest detective stories of all time, involving scientists, technology, luck, and hard work. (And an asteroid that slammed into our planet.) Today, we know more than ever before. But some answers are still shrouded in darkness. Today, maybe you can find them.
Ask About Today
How did scientists figure out that an asteroid may have played a role in dinosaur extinction?
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Meet the Dinosaurs
There were more than 100 different kinds of dinosaurs. Join National Geographic for a short overview of what they were and how they ruled our planet.
The Puzzle of Dinosaur Extinction
Let’s explore the fascinating variety of dinosaurs and the many theories about why they disappeared. The key clue was only found about 40 years ago. What was it? And how did it lead scientists on a search across the globe for more information?
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The Biggest Asteroid Strike Ever?
Now that we know dinosaur extinction was likely related to a giant asteroid striking Earth, what else do we know about that event. Well, it was an object the size of Earth’s biggest mountain traveling at a speed that would have taken it from New York to Los Angeles in FOUR MINUTES. Let’s dive deep on what happened!
How Do We Know What Dinosaurs Looked Like?
There were no humans on Earth when dinosaurs went extinct. So… how do we actually know what they looked like? All we have is a bunch of leftover bones, right? Well, it requires some detective work. But brace yourself: some dinosaurs might have had FEATHERS! Join BrainStuff for an investigation.
Join Ms. Linky for a series of exercises that will teach you all about eight different types of dinosaurs.