Weather

Question 1

Humidity

Answer 1

Humidity is the amount of water vapor present in the air

Question 2

Cumulus Cloud

Answer 2

Cumulus clouds are clouds which have flat bases and are often described as “puffy”, “cotton-like” or “fluffy” in appearance.

Question 3

Stratus Cloud

Answer 3

Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals

Question 4

Cirrus Cloud

Answer 4

Cirrus is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.

Question 5

Cumulonimbus Cloud

Answer 5

Cumulonimbus, from the Latin cumulus and nimbus, is a dense, towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapor carried by powerful upward air currents.

Question 6

Condensation

Answer 6

water that collects as droplets on a cold surface when humid air is in contact with it

Question 7

Evaporation

Answer 7

the process of turning from liquid into vapor

Question 8

Precipitation

Answer 8

the action or process of precipitating a substance from a solution.

Question 9

Runoff

Answer 9

the draining away of water (or substances carried in it) from the surface of an area of land

Question 10

Rain

Answer 10

Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then becomes heavy enough to fall under gravity

Question 11

Sleet

Answer 11

a form of precipitation consisting of ice pellets, often mixed with rain or snow.

Question 12

Snow

Answer 12

ice crystals that precipitate from the atmosphere and undergo changes on the Earth’s surface.

Question 13

Hail

Answer 13

pellets of frozen rain that fall in showers from cumulonimbus clouds.

Question 14

Polar-Maritime Airmass

Answer 14

Maritime polar air masses are cool, moist, and unstable. Some maritime polar air masses originate as continental polar air masses over Asia and move westward over the Pacific, collecting warmth and moisture from the ocean.

Question 15

Tropical-Maritime Airmass

Answer 15

Maritime tropical air masses originate over the warm waters of the tropics and Gulf of Mexico, where heat and moisture are transferred to the overlying air from the waters below. The northward movement of tropical air masses transports warm moist air into the United States, increasing the potential for precipitation.

Question 16

Polar-Continental Airmass

Answer 16

Continental Polar Air Masses: cold temperatures and little moisture. Those who live in northern portions of the United States expect cold weather during the winter months. These conditions usually result from the invasion of cold arctic air masses that originate from the snow covered regions of northern Canada.

Question 17

Tropical-Continental Airmass

Answer 17

They are classified according to latitude and their continental or maritime source regions. Colder air masses are termed polar or arctic, while warmer air masses are deemed tropical. Continental and superior air masses are dry while maritime and monsoon air masses are moist.

Question 18

Cold Front

Answer 18

the boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system.

Question 19

Warm Front

Answer 19

the boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system.

Question 20

Thunderstorm

Answer 20

a storm with thunder and lightning and typically also heavy rain or hail.

Question 21

Lightning

Answer 21

Lightning is a sudden electrostatic discharge that occurs typically during a thunderstorm. This discharge occurs between electrically charged regions of a cloud, between two clouds, or between a cloud and the ground.

Question 22

Thunder

Answer 22

a loud rumbling or crashing noise heard after a lightning flash due to the expansion of rapidly heated air.

Question 23

Tornado

Answer 23

A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.

Question 24

Hurricane

Answer 24

a storm with a violent wind, in particular a tropical cyclone in the Caribbean.

Question 25

Thermometer

Answer 25

A thermometer is a device that measures temperature or a temperature gradient. A thermometer has two important elements: a temperature sensor in which some change occurs with a change in temperature

Question 26

Anemometer

Answer 26

an instrument for measuring the speed of the wind, or of any current of gas.