

Chapter 1
Mapping the abyss
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Chapter 2
Physics under pressure
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Chapter 3
Life in the Hadal Zone
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Chapter 4
Humans in the deep
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YOUR GOAL
Master of The Mariana Trench
Ch 2 · Physics under pressure
artiteacher The Mariana Trench
Down in the deep, down in the deep Water gets squeezed five percent tight!

artiteacher Sunlight disappears completely below one thousand meters, leaving the trench pitch black and freezing.
Fun Fact
Deep pressure: The pressure at the bottom of the Mariana Trench is equivalent to about 50 jumbo jets stacked on top of a person.
Glossary
hydrostatic pressure (noun)
The pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. In 1960, the bathyscaphe Trieste successfully withstood this immense force at the bottom of Challenger Deep.
The pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. In 1960, the bathyscaphe Trieste successfully withstood this immense force at the bottom of Challenger Deep.
Quiz
What unit is most commonly used to measure water pressure in scientific oceanography?
Quiz
Why does water at the Mariana hydrothermal vents not boil despite being over 100 degrees Celsius?

