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Grades 9-12

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How Deep is Deep?

Dive down, down, and down a whole lot more—until you've traveled 2,400 meters to the sea floor. Can you picture how deep that really is? Compare it with the height of famous landmarks, and you will.

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Cindy Lee Van Dover

For oceanographers, the work they do at sea is just the beginning. Learn more about the discoveries made by one scientist who completed more than 100 dives to the sea floor.

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Hydrothermal Vent Formation

Submarine hot springs, called hydrothermal vents, spew out mineral-rich hot water. What do scientists hope to learn by tracking the temperature variations around these vents for an entire year?

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Dispatch from the Deep: Home Again

From Pennsylvania to the Pacific Ocean and back again. Experience the final day of an expedition to study deep sea vents with this eyewitness account, and learn what came of the research.

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One REVEL Teacher, Many Monkeys Fists

What are "monkey's fists" doing out at sea? This type of seaman's knot is being used to deploy deep sea thermometers. Find out if this teacher AND her fists get to travel to the ocean floor.

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Case Study: John Michell And Black Holes

Imagine gravity so strong that even light is contained by its force. When a country parson first described black holes in 1783, the concept was so ahead of its time that it was mostly ignored.

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Case Study: Fossil Microbes on Mars?

A meteorite that escaped from Mars 16 million years ago was found recently in Antarctica. Does it, or doesn't it, hold evidence that proves the existence of life on the red planet?

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Case Study: Neutrino Observatories

Update your image of astronomers. Today they spend most of their time peering into computer screens rather than through the eyepiece of a telescope. Learn what this new vantage point has gained them.

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