Chap 2, Sec 1 Earth's Oceans

At what stage of the water cycle would the sun's energy cause liquid to rise into the atmosphere as water vapor?

Evaporation

What causes changes in salinity?

Climate and water movement affect salinity. Costal water in cool, humid places has a low salinity. Slow-moving bodies of water have higher salinity than other parts of the ocean do.

What are the relative amounts of dissolved solids in ocean water?

Ocean water tastes salty. The most abundant dissolved solid in the ocean is salt (sodium chloride).

What is the largest ocean?

Pacific Ocean

At what stage of the water cycle would solid or liquid water fall to the earth?

Precipitation

Characteristics of the ______ zone: * temperatures vary with latitude and time of year * temperatures range from 1 degree celsius near the poles to about 24 degrees celsius near the equator *this zone is heated more in the summer

Surface Temperature Zone

What are the temperature zones in the ocean?

Surface zone - 1st layer Thermocline - 2nd layer Deep zone - 3rd layer

The temperature of ocean water ________ as depth increases

decreases

Salinity varies in different parts of the ocean because of variations in ______, _______ and freshwater inflow

evaporation circultation

The _________ regulates atmospheric temperatures

ocean

What is the measure of the amount of dissolved solids in a given amount of liquid called?

salinity

The top layer of ocean water that extends to 300 m below sea level is called

surface zone

the ocean absorbs and releases _________ energy much more slowly than dry land does

thermal

The circulation of warm water causes some coastal lands to have ________ climates that they would have without the currents.

warmer

What is the continuous movement of water from the ocean to the atmosphere to the land and back to the ocean called?

water cycle

What % of the earth's surface is covered with water?

71%

What are the 5 main oceans?

Arctic Ocean Atlantic Ocean Pacific Ocean Southern Ocean Indian Ocean

The ocean stabilizes the earth's weather conditions by ___________ and _________ thermal energy.

absorbing holding

How did the oceans form?

*About 4.5 billion years ago, there were no oceans. *Sometime before 4 billion years ago, the earth cooled enough for water vapor in the atmosphere to condense and fall as rain. * The rain filled the deeper levels of Earth's surface and the first oceans began to form.

What is one factor that affects ocean temperatures?

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What is one factor that affects salinity in the ocean?

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