Science5 Flashcards
Air Pressure
is the force exerted onto a surface by the weight of the air
Atmosphere
to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy
Barometer
an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
Barometer pressure
is the force exerted by the atmosphere at a given point
Front
the foremost line or part of an armed force; the furthest position that an army has reached and where the enemy is or may be engaged
Celsius
the scale of temperature in which water freezes at 0° and boils at 100° under standard conditions.
Climate
the weather conditions prevailing in an area in general or over a long period
Cloud
a visible mass of condensed water vapor floating in the atmosphere, typically high above the ground
cumulonimbus cloud
is a dense towering vertical cloud associated with thunderstorms and atmospheric instability, forming from water vapor carried by powerful upward air currents
cumulus cloud
are puffy clouds that sometimes look like pieces of floating cotton.
dew point
below which water droplets begin to condense and dew can form.
drought
low rainfall; a shortage of water resulting from this
freezing point
the temperature at which a liquid turns into a solid when cooled.
Hurricane
a storm with a violent wind, in particular a tropical cyclone in the Caribbean
Funnel cloud
a rotating funnel-shaped cloud forming the core of a tornado or waterspout.
Global warming
a gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants
Hail
pellets of frozen rain that fall in showers from cumulonimbus clouds
Humidity
a quantity representing the amount of water vapor in the atmosphere or a gas
Meteorology
the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather
precipitation
rain, snow, sleet, or hail that falls to the ground.
thunder
a loud rumbling or crashing noise heard after a lightning flash due to the expansion of rapidly heated air.
thunderstorm
a storm with thunder and lightning and typically also heavy rain or hail.
tornado
a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.
tropical depression
an atmospheric low-pressure system originating in the tropics, specifically, a tropical cyclone in which the maximum sustained wind speed is 38 miles per hour