Weather; Atmosphere and Weather Tools
What tool is used for measuring air pressure?
Barometer
What is the Gulf stream?
A warm OCEAN current in the Atlantic Ocean
Air TAKES UP _________.
Air has _________.
Air has _________.
Air TAKES UP SPACE.
Air has MASS.
Air has WEIGHT.
What are the 4 types of fronts?
Warm front
Cold front
Stationary front
Occluded front
How do clouds form?
The SUN warms the water. Water vapor Rises. Water vapor Cools. Condenses into water droplets
What is the difference between weather and climate?
Weather is the condition of the day-by-day outside air or atmosphere at any given place or time.
Climate is how weather changes over longer periods of time (months, years, decades).
What effect does the jet stream have on weather in the United States?
Areas ABOVE the jet stream have cold temperatures, and areas BELOW the jet stream have warm temperatures
What is air mass?
A large body of air with similar temperature and humidity throughout
What happens when two air masses meet at a front?
a. the air mixes together
b. the warm air always goes down
c. air masses never meet at a front
d. one air mass slides over or under the other
d. one air mass slides over or under the other
Clouds stay up because the tiny water droplets that make up the cloud are actually __________ than air!
Lighter
What happens when air gets heated?
Warm air rises
What is the difference between the El Nino and La Nina?
El Nino is the climate pattern representing an unusual WARMING of the Pacific Ocean which is linked to impacts on weather and climate patterns around the world.
La Nina is the climate pattern representing an unusual COOLING of the Pacific Ocean which is linked to impacts on weather and climate patterns around the world.
Where can air masses form?
Over land or over water
What is the difference between land breeze and sea breeze?
- A Land Breeze most often happens at night and goes from high pressure to low pressure. This happens because the land is cooler than the water
- A Sea Breeze most often happens during the day and goes from high pressure to low pressure. This happens because the water is cooler than the land
Which cloud brings overcast weather. It will be gloomy, the sky is covered in a blanket of gray or light gray.
a. cumulus
b. cirrus
c. stratus
d. cumulonimbus
c. stratus
What is the difference between an anemometer and a wind vane?
An anemometer measure wind speed
A wind vane measure wind direction
What variables can change the position of the Jet Stream? (name at least 2)
-the location of high and low pressure
-warm air and cold air
-other air pressure systems
-seasonal changes.
Where air masses form (near the poles or near the equators) determines the air mass' ____________.
TEMPERATURE
What is the weather like during a stationary front?
Stationary fronts create cloudy or rainy weather for long periods of time.
What does “Nimbo” means?
Precipitating
What three things have a big effect on air pressure?
1. Height above Sea Level
2. Temperature
3. Water Vapor
Name Three Types of Global Winds on Earth
Prevailing Westerlies (our winds!)
Polar Easterlies
Trade Winds
How are air masses “named”?
cP - Continental Polar - DRY AND COLD
cT - Continental Tropical - DRY AND HOT
mT -Maritime Tropical- HUMID AND HOT
mP - Maritime Polar- WET AND COLD
What is the temperature like during an occluded front?
The temperature of the area is COOLER after an occluded front comes through.
Why does dust or dirt in the sky cause precipitation?
The dust or dirt gives the water vapor something to condense around.