Lorena Ms Science Unit 8 Test Review

Front 1

Almost all weather is caused by

Back 1

the sun unevenly heating the Earth since it is tilted on its axis.

Front 2

Air mass

Back 2

Body of air that has the same temperature and humidity throughout.

Front 3

Air pressure

Back 3

Atoms & molecules that make up the various layers in the atmosphere are constantly moving in random directions.

Front 4

High Air pressure

Back 4

Near the poles

Front 5

Low Air pressure

Back 5

near equator

Front 6

Convection Current

Back 6

Warm air rises, cold air moves in to replace it.

Circulation pattern is formed causes air and water currents to form,

Front 7

Hot air is..... MORE or LESS dense than Cold air?

Back 7

LESS dense

Front 8

Gyre

Back 8

Vertical columns or mounds of water at the surface with water flows around and produces enourmous circular currents.

Front 9

Humidity

Back 9

The amount of water vapor in the air.

Front 10

Hurricane

Back 10

tropical cylones

Front 11

4 things needed for Hurricane to form.

Back 11

Low pressures

Warm waters

5-30 degrees above the equator

Low to Medium winds blowing in same direction

Front 12

Hurricanes energy comes from .....

Back 12

the sun that heats the water.

Front 13

Jet stream

Back 13

Narrow bands of strong wind in the upper levels of the atmosphere.

Front 14

Prevailing Winds

Back 14

winds that blow predominately from a single direction. Broken into 6 bands around the earth.

Front 15

Psychrometer

Back 15

tool used to measure relative humidity

Front 16

Anemometer

Back 16

Tool to measure wind speed

Front 17

Weather front

Back 17

Area where 2 air masses meet

Front 18

Cold front

Back 18

Cold air meets warm air, fast moving & stormy, severe weather is likely.

Front 19

Warm front

Back 19

Warm air meets cold air, slower moving, less severe.

Front 20

Stationary front

Back 20

warm and cool air masses that are not strong enough to move one another. Sits still for a long time.

Front 21

maritime

Back 21

above water,humid

Front 22

Continental (Air mass)

Back 22

above land, dry

Front 23

Tropical (air mass)

Back 23

near the equator,warm

Front 24

Polar (air mass)

Back 24

away from equator,cool

Front 25

Air pressure

Back 25

winds blow from areas of high to low pressure

Front 26

What kind of weather is high pressure?

Back 26

Clear

Front 27

What kind of weather is low pressure?

Back 27

Cloudy

Front 28

Convection Currents:

Warm material Less dense (light)

Back 28

Rises

Front 29

Convection Currents:

Cold material more dense (heavy) :

Back 29

Sinks

Front 30

Global Wind currents.....Look at notes.(MAP)

Map of Global winds.. know the name for each section.

Back 30

Polar Easterlies: down & left

Westerlies: down & right

Easterly Trade Winds pointing down & left

Equator----------------------------

Easterly trade winds pointing up & left

Westerlies: down & right

Polar Easterlies up & left

Front 31

Coriolis Effect

Back 31

Earth rotates counter-clockwise; winds bend and curve around the earth.

Front 32

Northern Hemisphere

Back 32

Winds bend to the right of their direction of travel

Front 33

Southern Hemisphere

Back 33

Winds bend to the left of their direction of travel

Front 34

Gulf Stream

Back 34

Strong, Warm surface current that starts at the tip of Florida, travels up the east coast of the US and crosses the Atlantic.

Causes a warmer Climate in NW Europe

Front 35

How is wind produced?

Back 35

Earth is unevenly heated. Differences in temperature cause differences in air pressure.

Air moves from areas of high to low pressure... this movement of air is wind.

Front 36

How do oceans impact our climate?

Back 36

Oceans transport heat and moisture around the globe impacting climate

Front 37

Fuel for hurricanes?

Back 37

Warm ocean water

Front 38

Why do we have weather on Earth?

Back 38

Weather happens because of the uneven heating of Earth ( because it is tilted) by the Sun.

Front 39

How do weather maps show how the global patterns of atmospheric movement affect local weather?

Back 39

Weather maps show the location of high and low pressure systems and the movements of the fronts(air masses).

Front 40

Prevailing winds

Back 40

There are six bands separated at different latitudes.