Grades 9-12

Going Deep Under the Sea

Activity

Going Deep Under the Sea

What does it take to send a crew to the bottom of the ocean? A sub with 14-inch-thick walls made of a titanium-steel alloy—and a day of calm seas to ensure smooth diving.

Pressure in the Deep Seas

Article

Pressure in the Deep Seas

How pressurized is the ocean floor? Imagine an elephant standing on your big toe—then apply that pressure to your whole body. But thanks to ALVIN, scientists can make the dive comfortably.

Veronique Robigou

Article

Veronique Robigou

You don't need to leave Earth to find life forms that can exist in the harshest of environments. This marine geologist discusses the exciting research being done at the bottom of the ocean.

Weather Conditions Over the Deep Seas

Article

Weather Conditions Over the Deep Seas

What does it take to send a crew to the bottom of the ocean? A sub with 14-inch-thick walls made of a titanium-steel alloy—and a day of calm seas to ensure smooth diving. 

how deep is deep_thumb

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.

Hydrothermal Vent Formation

Article

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?

Dispatch from the Deep: Home Again

Article

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.

One REVEL Teacher, Many Monkeys Fists

Article

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.

Cindy Lee Van Dover

Article

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.

Case Study: Fossil Microbes on Mars?

Online Resource, Article

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?

Case Study: Neutrino Observatories

Online Resource, Article

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.

Case Study: The Cosmic Microwave Background Radiation

Online Resource, Article

Case Study: The Cosmic Microwave Background Radiation

At this distance in time and space, can we prove that the universe was created with a single explosion? See how scientists have detected a faint remnant glow that supports the Big Bang theory.

Profile: Ernst Chladni and Rocks from the Sky

Online Resource, Article

Profile: Ernst Chladni and Rocks from the Sky

Today, we accept the notion that enormous rocks exist within our solar system and that some of them fall to Earth. A little over 200 years ago, though, this idea garnered skepticism and ridicule.

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