Fronts
Climate
Severe Weather
Air Pressure
Properties of Water
100
When two unalike air masses meet, density differences usually keep the air masses separate.
What is a Front
100
A regions weather patterns are tracked for _____________ before its' climate can be determined
What is 30 years?
100
A meteorologist determines that increased hurricane intensity in the Pacific Ocean is due to high sea-surface temperature. Which natural factor is most likely the reason?
a. a volcanic eruption
b. La Nina
c. increased appearance of sunspots
d. a change in the shape of Earth's orbit
What is La Nina?
100
This pressure system rotates counter-clockwise, leads to clouds and precipitation, and is also called a cyclone
What is Low Pressure?
100
This powers the heat energy needed for the water cycle
What is the Sun
200
Heavy rain and violent thunderstorms occur during this front, followed by cool, fair weather.
What is a cold front
200
Every 3 to 7 years, the trade winds in South America become reduced and calm for many weeks. What causes this?
a. prevailing westerlies
b. tropical storms
c. the jet stream
d. El Nino
What is D. El Nino?
200
Which most likely causes severe thunderstorms and tornados?
a. a warm air mass moving beneath a cold air mass
b. a warm air mass slowly rising above a cold air mass
c. a cold air mass moving beneath a warm air mass
d. a cold air mass rapidly moving over a warm air mass
What is C. a cold air mass moving beneath a warm air mass?
200
This pressure system blows in a clockwise motion and is also referred to as an anti-cyclone
What is High Pressure?
200
This image demonstrates what part of the water cycle?
What is transpiration?
300
Clouds and fog form during this front, bringing many days of clouds and light precipitation.
What is a stationary front?
300
Which statement describes a factor outside human influence that is causing climate change in the winter?
a. changes in the composition of the atmosphere
b. El Nino and La Nina
c. Human actions, such as air pollution
d. The average world temperature is decreasing
What is B. El Nino and La Nina
300
Tornadoes, Hurricanes, and Thunderstorms are all formed in a ________________
What is a Cold Front?
300
Why does the weight of air not crush you?
What is the pressure is exerted in all directions, not just down.
300
Glaciers and ice caps float on the water. Explain in terms of density why this happens.
What is ice caps and glaciers are more dense than ocean water.
400
This front causes a broad area of clouds to form, bringing gentle rain or light snow.
What is a warm front?
400
How do ocean currents influence weather and climate around the world?
a. by deflecting the jet stream across all continents
b. by producing high and low tides
c. by regulating the amount of salt dissolved in ocean waters at the equator
d. by transferring heat energy from the sun between the equator and the poles
What is D. By transferring heat energy from the sun between the equator and the poles
400
Hurricanes form from interactions between the ocean and atmosphere. Which TWO conditions must occur for a hurricane to form?
a. tornadoes
b. heavy rains
c. cold ocean water
d. warm ocean water
e. thunderstorm activity
What is D. Warm ocean water and E. thunderstorm activity
400
This causes wind to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere
What is the Coriolis Effect?
400
This is the process that occurs when water seeps into the ground.
What is infiltration?
500
This front brings strong winds, heavy precipitation, and severe thunderstorms.
What is an occluded front?
500
The difference between continental air masses and maritime air masses is how much __________________ they have.
What is moisture?
500
This type of cloud is associated with severe weather.
What is a cumulonimbus cloud?
500
During a July day, the air pressure in Raleigh, NC is dropping as an air mass is moving into the area. What type of weather will most likely occur?
a. clear
b. cool
c. rainy
d. hot
What is rainy weather?
500
A white flower sits in red-dyed water for 3 days. When those 3 days are up, the flower petals have turned red. What property of water was demonstrated?
What is capillary action?