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39 terms

Weather Quizlet

STUDY
PLAY
What are the three ingredients of weather?
air, water, and heat/temp
Weather
the current state of the atmosphere
What is the location of weather?
the troposphere
Similarities between weather and climate
They both involve weather and atmosphere
Difference between weather and climate
Weather is the weather on a day-to-day basis. Meanwhile, climate is the weather over a long period of time.
Mass
How much stuff there is
Volume
How much space something takes up
Density
the amount of mass in a given volume
Pressure
the force pushing on an area or surface
What is the relationship between altitude and air pressure?
As the altitude increases, pressure decreases
Relationship between water pressure and weather
...
Cause of wind
the uneven heating of Earth and its atmosphere. The uneven heating creates convection currents.
How are temperature and pressure related to each other and wind?
colder temp=more dense and pressure. warmer temp=less dense and pressure. This relates to convection currents.When it is warm the molecules separate which causes low pressure, when it is cold, they condense and create higher pressure.
What happened in the soda can demo?
The can was crushed because when it was put in cold water, the warm air exits quickly. When the warm air exits, the pressure inside decreases, but the pressure on the outside stays the same, causing the can to crush
The Coriolis Effect on wind
winds in the northern hemisphere blow to the right; winds in the southern hemisphere blow to the left
Fronts
cold, warm, stationary, and occluded. When cold fronts move toward warm fronts the cold air forces itself under the warm air. The warm air is lifted and it cools and forms water vapor and clouds.
Cold Fronts
occurs when colder air moves towards warm air; represented as a blue line with triangles
Warm Fronts
warm air moving towards cold air, and it goes above the cold air
Stationary Fronts
occurs when the air masses are not moving. they can produce light, wind, and precipitation
Occluded Fronts
involves three different air masses: one cold, one cool, and one warm
Types of precipitation
Rain, snow, sleet, and hail
Rain
precipitation that falls in temperatures above freezing
Snow
precipitation that falls in temperatures cold enough to go from water vapor to solids
Sleet
when raindrops pass through freezing air near the Earth's surface
Cumulus Clouds
form in low altitudes; masses of puffy white clouds with flat bases; fair weather or thunderstorms
Stratus Clouds
form in low altitudes; layers of smooth, even sheets; fog, fair weather, rain, or snow
Cirrus Clouds
form in high altitudes; curly, white, thin, and feathery; fair weather or approaching storms
What causes thunder and lightning?
The movement of electrons.
How are hurricanes and tornadoes different?
Tornadoes form on land and in water, but hurricanes form only in water.
How are hurricanes and tornadoes similar?
Hurricanes and tornadoes both produce powerful, destructive winds and can both form on water
The properties of air
air has mass, and because it has mass it has density
Front Movement
cold fronts move under warm air, warm fronts move under cold air, stationary fronts don't move, occluded fronts are cool air moving towards each other and traps the warm air above.
Relationship between wind and air pressure
Wind moves from high pressure to low pressure
Alto-
Middle height clouds
Ciro-
high
Strato-
low
Water cycle
Sun, evaporation, condensation(clouds), precipitation, runoff, accumulation
What happened in the egg demo?
When the paper was lit, the air inside the bottle got hotter and expanded. Some of the air escaped from the bottle. When the flame went out, the air inside the bottle cooled down and so the air pressure decreased. This meant the pressure outside the bottle was greater than inside the bottle. This pushed the egg into the bottle.
What causes different climates on Earth?
The Earth is tilted on its axis so as it turns, different parts of the Earth gets direct sunlight. The Equator always gets direct sunlight.The poles do not get direct sunlight.