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Grades 9-12


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Looking For Life In Antarctica

If you want an idea of the conditions on Mars, journey to Antarctica. Take a close look at the work of an astrobiologist studying Antarctica's valleys, the "most Mars-like places on Earth."


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Mapping Hot Springs on the Deep Ocean Floor

At the bottom of the ocean, how do scientists find their way around? This marine geologist's work includes helping to create accurate, high-resolution maps of the sea floor.


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Mapping Mt. Rainier

Beneath the glacier-clad summit of Mt. Rainier lies an active volcano, which has more than once produced enough molten rock to bury an area the size of Tacoma and Seattle combined almost 10 feet under.


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Retrieving a Stromatolite from the Sahara Desert

Why did museum scientists travel to the Sahara to retrieve a boulder? This stromatolite was built by microbes, the only life that existed on Earth until about a billion years ago.


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Studying Tree Rings to Learn About Global Climate

By taking biopsy-like samples from centuries-old Siberian pines, scientists have reconstructed a 300-year record of temperature changes for the Arctic and the Northern Hemisphere.


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Reefs in Crisis

Humans have harmlessly harvested coral reefs for thousands—or even hundreds of thousands—of years. So why has our behavior in recent years suddenly put reefs at risk?


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Because they feed on everything from monkeys and pacas to armadillos and alligators, jaguars play a key role in the rain forest ecosystem. Learn how protecting them safeguards the jungles of Belize.


Online Resource, Article

The Green Guerillas

From a humble start 25 years ago tossing seed-filled water balloons into abandoned city lots, the Green Guerillas have grown into an organization that has created and maintains 1,000 urban gardens.


Online Resource, Article

Wilderness Preservation Act

There are more than 260 distinct ecosystems in the United States. Yet only a little over half of them are in protected wilderness areas. What does it take to obtain "wilderness status"?


American Museum of Natural History

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