Unit 3 Lesson 4-5 Flashcards Preview

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Flashcards in Unit 3 Lesson 4-5 Deck (65)
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1

______________ ______________ causes surface currents north and south of the equator to move in different directions.

Coriolis effect

2

_______ water is more dense than _______ water

Cold; warm

3

Because of the Coriolis effect, ocean water moves _________ in the northern hemisphere, and ________ in the Southern Hemisphere.

Right; clockwise
Left; counterclockwise

4

What 3 factors most directly affect surface currents in the ocean

Continental deflection, Coriolis effect, and global winds

5

The______ is the source of energy for ocean currents

Sun

6

The coriolis effect is caused by

Earths rotation

7

What factors are responsible for the formation of deep currents

Salinity and temperature of the water

8

Convection currents formed in the sea are caused by

Differences in water density

9

How would surface currents be different if the earth did not have continents

Surface currents would travel in regular shaped curves

10

When upwelling takes place, the number of _________ near the surface of the ocean increases

Phytoplankton

11

A surface current is the horizontal movement of ocean water that is caused by______

Wind

12

Describe how the movement of ocean water is produced

The sun causes uneven heating which leads to differences in air pressure. This causes the wind which moves the water at the surface of the ocean.

13

The bouncing back of the surface currents when they hit the land is called

Continental deflection

14

How is heat involved in the formation of convection currents

When water looses heat, it becomes denser and sinks

15

An increase in density caused by increase in ________ leads to deep ocean currents

Salinity

16

Which type of ocean water movement has the greatest effect of the growth of producers

Upwelling

17

The _____ is responsible for the uneven heating of the earth

Sun

18

__________ ________causes the coriolis effect

Earths rotation

19

The _______ _______ are found between the equator and 30

Trade winds

20

The ______ ______ blow to the west and are found between 60 and 90

Polar easterlies

21

The ________ blow to the east and are found between 30 and 60

Westerlies

22

The ______ ______ consist of high speed winds that blow in the upper atmosphere and move weather quickly

Jet streams

23

____ _______ form during the day and blow toward the land

Sea breeze

24

_______ ___________ form at night and blow toward the sea

Land breeze

25

__________ ______ move short distances and are variable

Local winds

26

The coriolis effect causes objects to move to the ________ in the northern hemisphere and to the ________ in the Southern Hemisphere

Right: east
Left; west

27

The trade winds divide equatorial currents from the ______ to the _________

East
West

28

What causes differences in wind speed

Pressure differences caused by uneven heating of the earths surface by the sun

29

__________ ________ form during the day and blow up the mountain

Valley breeze

30

_____________ __________ form at night and blow toward the valley

Mountain breeze