Open Ocean Flashcards

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1
Q

What is heat capacity

A

is a measure of the heat required to raise the temperature of 1g of a substance by 1 Celsius. In this example, water has a very high heat capacity.

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2
Q

How does the density of water change as it warms, cools and freezes

A

The warmer the water, the more space it takes up., When water decreases in volume, it becomes more dense., increase the space between molecules, causing a decrease in overall density.

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3
Q

What happens to the speed of water as it warms,cools and freezes

A

movement of water molecules increases., When water is cooled, the water molecules move slower and get closer together., when the water freezes the molecules start to move slower.

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4
Q

What is the difference between a thermocline, pycnocline, halocline

A

The pycnocline is when water becomes much denser with depth. The thermocline is a region where water abruptly becomes much colder with depth. The halocline is how the salt concentration in a body of water increases with depth.

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