Unit 3 Lesson 4-5

Question 1

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

Answer 1

Coriolis effect

Question 2

_______ water is more dense than _______ water

Answer 2

Cold; warm

Question 3

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

Answer 3

Right; clockwise

Left; counterclockwise

Question 4

What 3 factors most directly affect surface currents in the ocean

Answer 4

Continental deflection, Coriolis effect, and global winds

Question 5

The______ is the source of energy for ocean currents

Answer 5

Sun

Question 6

The coriolis effect is caused by

Answer 6

Earths rotation

Question 7

What factors are responsible for the formation of deep currents

Answer 7

Salinity and temperature of the water

Question 8

Convection currents formed in the sea are caused by

Answer 8

Differences in water density

Question 9

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

Answer 9

Surface currents would travel in regular shaped curves

Question 10

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

Answer 10

Phytoplankton

Question 11

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

Answer 11

Wind

Question 12

Describe how the movement of ocean water is produced

Answer 12

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.

Question 13

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

Answer 13

Continental deflection

Question 14

How is heat involved in the formation of convection currents

Answer 14

When water looses heat, it becomes denser and sinks

Question 15

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

Answer 15

Salinity

Question 16

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

Answer 16

Upwelling

Question 17

The _____ is responsible for the uneven heating of the earth

Answer 17

Sun

Question 18

__________ ________causes the coriolis effect

Answer 18

Earths rotation

Question 19

The _______ _______ are found between the equator and 30

Answer 19

Trade winds

Question 20

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

Answer 20

Polar easterlies

Question 21

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

Answer 21

Westerlies

Question 22

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

Answer 22

Jet streams

Question 23

____ _______ form during the day and blow toward the land

Answer 23

Sea breeze

Question 24

_______ ___________ form at night and blow toward the sea

Answer 24

Land breeze

Question 25

__________ ______ move short distances and are variable

Answer 25

Local winds

Question 26

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

Answer 26

Right: east | Left; west

Question 27

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

Answer 27

East | West

Question 28

What causes differences in wind speed

Answer 28

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

Question 29

__________ ________ form during the day and blow up the mountain

Answer 29

Valley breeze

Question 30

_____________ __________ form at night and blow toward the valley

Answer 30

Mountain breeze

Question 31

Air moves from ________ __________ to _____ __________

Answer 31

High pressure | Low pressure

Question 32

How are winds named

Answer 32

By the direction in which they blow

Question 33

What causes air circulation in earths atmosphere

Answer 33

Temperature differences

Question 34

Surface winds are weak at the ____________, which is a narrow zone around the equator

Answer 34

Doldrums

Question 35

The weak winds located at 30 are known as the ______________ __________

Answer 35

Horse latitudes

Question 36

________ ________ are stream like movements of water in the ocean

Answer 36

Ocean currents

Question 37

________ _________ are ocean currents that occur at or near the surface of the ocean

Answer 37

Surface currents

Question 38

The Gulf Stream is a ________ ________

Answer 38

Surface current

Question 39

Surface currents are affected by _____________ _________, the ____________ __________ and _________ _____

Answer 39

Continental deflection, coriolis effect, and global winds

Question 40

When surface currents meet __________, they are deflected and change direction

Answer 40

Continents

Question 41

The deflection of moving objects from a straight path due to earths rotation is the ________ ________

Answer 41

Coriolis effect

Question 42

In the Northern Hemisphere, currents are deflected to the __________. In the Southern Hemisphere, currents are deflected to the __________

Answer 42

East/right | West/left

Question 43

_________ _________ can push ocean water across earths surface to create surface currents

Answer 43

Global winds

Question 44

The major source of energy that powers surface currents is the ______

Answer 44

Sun

Question 45

The sun causes differences in ___________ across the Earth, which causes differences in ___________

Answer 45

Temperature | Pressure

Question 46

_________ form as a result of differences in air pressure and create surface currents

Answer 46

Winds

Question 47

_______ __________ are movements of ocean water below the surface caused by differences in density

Answer 47

Deep currents

Question 48

_________ is the amount of matter in a given space of volume

Answer 48

Density

Question 49

___________ and _________ cause differing ocean water densities

Answer 49

Temperature | Salinity

Question 50

____________ is a measure of the amount of dissolved salts of solids in a liquid

Answer 50

Salinity

Question 51

Higher salinity makes water more _______

Answer 51

Dense

Question 52

Dense water _________ and can form deep water currents that flow along the ocean floor or on another layer of denser water

Answer 52

Sinks

Question 53

__________ _________ in the ocean are the movement of water that results in density differences

Answer 53

Convection currents

Question 54

Convection currents can be ___________,__________ or__________

Answer 54

Vertical, circular or cyclical

Question 55

Water at the oceans surface absorbs energy from the ________, which can be carried to _________ regions

Answer 55

Sun | Colder

Question 56

As warm water reaches a colder region, it _______ and ______

Answer 56

Cools and sinks

Question 57

As warm water moves away, cold water can ______ from the bottom of the ocean, and the cycle continues

Answer 57

Rise

Question 58

_________ is the process n which winds blow warm water away from the shore, allowing cool, nutrient-rich water to rise to the surface

Answer 58

Upwelling

Question 59

Upwelling supplies ________ necessary for ocean life to grow

Answer 59

Nutrients

Question 60

Ocean currents can carry __________ to other regions of earth.

Answer 60

Organisms

Question 61

Ocean currents release energy into the atmosphere, making currents an important influence on ________

Answer 61

Climate

Question 62

Ocean water also transports _________,__________ and ________ to new locations

Answer 62

Salt Nutrients Gases

Question 63

Turtles, coconuts, and phytoplankton all ride ______ __________ in the ocean

Answer 63

Ocean currents

Question 64

Synonym for prevailing

Answer 64

Permanent

Question 65

The golf stream is one __________ of the global conveyor belt

Answer 65

Segment