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Science Ch.5

Earth's Weather

QuestionAnswer
What properties does air have? Has weight, takes up space, exerts pressure
What 4 things cause changes in air pressure? Volume, temperature, humidity, altitude
What instrument is used to measure air pressure? barometer
Air pressure moves from higher to lower, or lower to higher? higher to lower
Winds that blow steadily over long distances global winds
Transfer of heat through motion convection
What moves heat and water around the Earth? currents
What does El Nino cause? Surface temperatures to rise, air pressure over the water to fall, winds to change directions
Storms with a low pressure center that cause a circular pattern of winds to form cyclones
What are examples of cyclones? Tornadoes (twisters), hurricanes, typhoons
Bulge of water in the ocean caused by hurricanes storm surge
In what direction do cold and warm fronts tend to move in North America? From west to east
The leading edge of a cold air mass cold front
The leading edge of a warm air mass warm front
Name 3 ways scientists collect weather data. Radar, satellite, weather balloon
Name 3 ways a hurricane causes damage. Storm surge (flooding), wind damage (destroying cars, houses, and other property), lightning and rain
Why are temperatures different around the world? The sun heats the Earth unevenly, because it is shaped like a sphere.
What causes storms? When a cold air mass meets a warm air mass, the cold air sinks and pushes the warm air up. As the air cools, towering clouds form, leading to thunderstorms.
How do oceans affect the weather and climate of nearby land? Ocean currents keep nearby land temperatures in a moderate range.
What type of weather do low pressure systems bring? Cloudy, rainy/stormy weather.
What type of weather do high pressure systems bring? Clear, sunny weather.
Created by: 1564270643
 

 



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