What happens to a current when it comes in contact with a continent or landmass?

It continues over the continent

Why are surface currents at the surface of the ocean?

warmer temperature & less salinty

colder temperature & more salinty

Imagine two towns at the same latitude (distance from the Equator), but on opposite coasts of North America. In which town would you expect to find a warmer climate?

the town that is at higher elevation

Neither, the climates would be the same

The following map shows the currents of the west and east coast of the United States. Daytona, Florida and San Diego, California are both at 32° latitude. On June 3rd, two brothers take separate vacations with their families. Dean visits Daytona and the temperature is 82°F. Sam visits San Diego where the temperature is 68°F. Which of the following explains why the temperature difference is so great on opposite coasts?

The California current is cool so the temperatures on the coast are cool. The Gulf Stream runs next to Florida and is warm, so the temperatures on that coast are warmer.

The Coriolis effect causes the currents to curve in different directions on opposite coasts of North America, so the temperatures are different.

The California current originates near the equator and the Gulf Stream originates near the poles.

Weather is unpredictable and there is no scientific explanation for what he observed.

The global conveyor belt is a constantly moving system of deep-ocean circulation driven by what factors?

gravity and continental deflection

The deflection of planetary winds (the Coriolis effect) is a direct result of the:

gravitational forces within Earth.

convection currents within the asthenosphere

Deep ocean currents are caused by differences in density of the water. Which statement accurately describes the relationships between salinity, temperature, and density of ocean water?

Warm water, holding less salt, rises toward the surface of the ocean.

Cold water, holding less salt, sinks towards the bottom of the ocean.

Warm water, holding more salt, sinks towards the bottom of the ocean.

Warm water, holding more salt, rises towards the surface of the ocean.

What three factors most directly affect surface currents in the ocean?

surface winds, The Coriolis effect, and continental deflection

Dissolved solids, dissolved gases, energy

upwelling, convection, and the sun's energy

deep currents, convection currents, and surface winds

Ocean Currents

Quiz

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Science

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6th - 8th Grade

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NGSS

MS-ESS2-6, MS-PS1-4, MS-LS2-3

Standards-aligned

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Ocean Currents

24 questions

______ causes surface currents.

______ causes deep ocean currents

Decreasing ocean temperature causes the density of the water to ______.

Nutrients are brought to the surface for phytoplankton to use at _______.

_______ causes the Coriolis Effect

The __________ is a surface current that flows along the eastern US and brings warm water to Europe.

__ and _ affect the ocean's density and cause the Global Conveyor Belt to travel

The more scientific name of the Global Conveyor Belt is _____.

Two types of water currents are

Ocean currents have an affect on which two things

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Ocean Currents

24 questions

______ causes surface currents.

______ causes deep ocean currents

Decreasing ocean temperature causes the density of the water to ______.

Nutrients are brought to the surface for phytoplankton to use at _______.

_______ causes the Coriolis Effect

The __________ is a surface current that flows along the eastern US and brings warm water to Europe.

________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel

The more scientific name of the Global Conveyor Belt is _____.

Two types of water currents are

Ocean currents have an affect on which two things

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__ and _ affect the ocean's density and cause the Global Conveyor Belt to travel