Science Test 10

Front 1

Thunderstorm

Back 1

Localized storm involving lightning, thunder, strong winds and rain

Front 2

Unstable air

Back 2

Warm air near the ground but very cold in high altitudes

Front 3

Mature stage of a thunderstorm

Back 3

Marked by the arrival of precipitation

Front 4

Downbursts

Back 4

Concentrated blast of cool wind that blows downward

Front 5

Microburst

Back 5

Smallest, most intense downburst

Front 6

Cell

Back 6

Updraft system of a thunderstorm

Front 7

Super cell

Back 7

Most powerful type of thunderstorm

Front 8

Squall line

Back 8

Long line of advancing thunderstorms

Front 9

Lightning

Back 9

An abrupt discharge of electricity through the air that produces a quick flash of light

Front 10

Return stroke

Back 10

Upward flow of positive charge that forms the brilliant flash of light

Front 11

Positive streamer

Back 11

Positive charge on the ground that launches up toward the cloud

Front 12

Thunder

Back 12

Air near the lightning that expands explosively forming a Shockwave of sound

Front 13

Tornadoes

Back 13

Narrow funnel of rapidly powerful whirling wind

Front 14

Mesocyclone

Back 14

Rotating updraft

Front 15

Waterspout

Back 15

Tornadoes that forms over water

Front 16

Dust devil

Back 16

Similar to a tornadoes but starts on the ground and isn't associated with clouds

Front 17

Enhanced Fujita scale

Back 17

Unveiled in Feb 2007;measures the intensity of tornadoes

Front 18

Condensation funnel

Back 18

Most distinctive feature of a tornadoe

Front 19

Warm ocean and an area where the coral is effect is very pronounced

Back 19

Two ingredients for a hurricane

Front 20

74 mph

Back 20

Hurricane wind speeds

Front 21

39-74 mph

Back 21

Tropical storm wind speeds

Front 22

Storm surge

Back 22

Elevated water levels caused by hurricane winds pushing water ahead of the storm

Front 23

Saffir-Simpson Hurricane wind scale

Back 23

Ranks hurricanes

Front 24

Eye of a hurricane

Back 24

Center of the hurricane; region of low pressure

Front 25

Rain bands

Back 25

Long narrow lines of thunderstorms

Front 26

Anemometer

Back 26

Measures winds speeds and direction

Front 27

Barometer

Back 27

Measures atmospheric pressure

Front 28

Ceilometer

Back 28

Measures from the ground to the base cloud

Front 29

Hygrometer

Back 29

Measures relative humidity

Front 30

Radar

Back 30

Radio detection and ranging, uses radio waves to detect objects and measures their distance

Front 31

Rain gauge

Back 31

Measures the amount of precipitation

Front 32

Thermometer

Back 32

Measures air temperature

Front 33

Weather vane

Back 33

Indicates wind direction

Front 34

Weather balloon

Back 34

Unmanned helium balloon used to measure high altitudes weather conditions

Front 35

Radiosonde

Back 35

Simultaneously transmits and measures meteorological data from the weather balloon

Front 36

Bar

Back 36

Approximately equal to standard atmospheric pressure at sea level

Front 37

Isotherms

Back 37

Lines of equal heat

Front 38

Isobars

Back 38

Lines of equal pressure

Front 39

Surface weather charts

Back 39

Map that gives a summary of weather conditions throughout a large area at a single point in time

Front 40

Negative cloud to ground: from the negative bottom of a cloud to the ground

Positive cloud to ground: from the positive top of the cloud to the ground

Hot lightning: causes objects to catch on fire

Ground to cloud: starts on the ground and jumps to the cloud

Cloud to cloud: occurs between 2 clouds or the same cloud in the negative and positive portion of the same cloud

Ball lightning: rare phenomenon that consists of a small sphere of electricity that floats in the air for several seconds

Back 40

Essay