Atmosphere Around You
Water in the Atmosphere
Air Masses
Predicting Weather
Severe Weather
100
What is the main source of heat for our atmosphere?
The sun!
100
The sun causes __________ to happen by heating water.
Evaporation
100
Air masses that form further North and over land have what kind of characteristics? (temp and humidity)
Cold and dry
100
True or false:
A weather balloon can be seen above Earth's atmosphere and collects data from a global perspective.
False
Balloons ascend into the atmosphere to collect data about the atmosphere, including temperature, pressure, humidity, and wind speed and direction. While satellites orbit Earth, providing a global perspective to monitor weather and climate conditions from a high vantage point, providing a global view.
100
A long period with little or no rain
drought
200
Air moves from areas of ____ pressure to areas of ____ pressure.
High to low
(it is the only way to go!)
200
When rain changes to sleet, temperatures are _____________.
decreasing, falling, getting lower.
200
Layla lives in Florida along the eastern coast. The kind of air mass most likely to occur over this region would be?
Maritime tropical
200
Why are accurate forecasts important? (pick 2)
a. help people prepare for severe weather
b. help people understand weather maps
c. help fishers learn about the seasons
d. help farmers know when to plant and harvest.
e. help people who want to be meteorologists
A and D
200
What is one risk from flooding?
water can remain for a long time, can occur at night and can't be seen, very little warning, can contaminate drinking water
300
"How do jet streams influence the weather patterns in different regions, and why do they cause some areas to have more extreme weather than others?"
Jet streams are fast-moving winds high up in the sky that move air around the Earth. They affect the weather by pushing warm or cold air into different areas.
- When the jet stream moves south, cold air from the poles can bring colder weather and sometimes snow.
- When the jet stream moves north, warm air from the tropics can make the weather warmer, causing heat waves or drought.
Jet streams also help guide storms, making some areas have more extreme weather, like heavy rain, snow, or strong winds, depending on where the jet stream is.
300
When clouds become to saturated (full) of water, what step in the water cycle happens?
Precipitation
300
What happens during an occluded front? *hint, there are 3 air masses!
A cold front comes in and traps a warm air mass between itself and another cold front
300
When barometric pressure is falling, the weather will be ________________.
stormy
300
What is the difference between a storm watch and a storm warning?
Watch means the conditions are right
Warning means the severe weather is happening
400
As altitude increases, air pressure _____________.
Decreases
400
Plants take in water through their (1)__________ and when water leaves through the leaves it is called (2)______________.
1. roots
2. Transpiration
400
What kind of front: warm air rises above cold air and brings severe weather.
Cold front
400
Mary notices that it has been raining for several days. She hears the news reporter say that there is a stationary front present. What does this mean?
a cool air mass and a warm air mass have met but neither are moving bringing clouds and rainy weather.
400
What type of severe weather includes wind speeds of at least 119 km/h, flooding, heavy rain, and storm surges?
Hurricanes
500
Felix Baumgartner jumped through the layers of Earth's atmosphere. As he descended in altitude, how does the temperature change through each layer (stratosphere, troposphere)? Why couldn't Felix start from a higher layer such as the mesosphere and thermosphere?
As he fell through the Stratosphere, the temperatures were extremely cold, reaching well below freezing, with estimates around -70°F (-57°C) and increased in temperature as he reached the troposphere. The ground temperature at the launch site was 14°C (57°F).
Felix could not have started in the mesosphere due to extreme cold temperatures (-90°C /-130°F) or the thermosphere due to extreme hot temperatures (500° C /932° F) as well as the presence of meteors.
500
Kyle breathed against a window pane and noticed that his breath made a spot on it from the water vapor in his breath. What stage of the water cycle does this show?
Condensation
500
Describe what the temperature and precipitation would be like at a warm front.
Temps would be warmer and gentle rain/precipitation
500
What tool do meteorologist use to measure air pressure?
barometer
500
What type of front do tornadoes develop at?
Cold front
