Weather Instruments
The definition of climate
What is the PATTERN of weather over a long period of time?
When air moves around and around in a cycle due to temperature differences
What is a convection cell?
A large storm that forms over the ocean near the equator
hurricane
The definition of weather
What is the condition of the atmosphere at a particular time and palce?
The reason that convection cells form in the atmosphere
What is differences in density caused by differences in temperature?
A strong windstorm with a funnel-shaped cloud
tornado
Three factors that affect weather
Precipitation, Air Temperature, Air Pressure, Clouds and Fog, Wind, Humidity
How climate and weather are different
What is weather can change very quickly, while climate doesn't change easily?
What happens when air is cooler
What is its molecules become more tightly packed (more dense) and so it sinks?
What kind of weather does high pressure bring?
nice, sunny weather
What is an air mass?
A portion of air with the same temperature and humidity throughout
Three factors that affect climate
What are location (distance from the equator), altitude (how high up you are), and proximity to a big body of water?
These things cause air masses to be more humid
What are closeness to the equator (warmer) and closeness to a large body of water (more moisture available)?
The general direction that air masses move across the United States
The difference between humidity and relative humidity
What is humidity is the amount of water vapor air can hold; relative humidity is the amount of water vapor the air IS HOLDING compared to how much IT CAN HOLD?
The name of the scientist who studies weather patterns in order to predict future weather
What is a meteorologist?
The relationship between temperature and dew point
What is cooler air can hold less water vapor?
*When air is cooled, the water vapor it contains condenses out and becomes liquid water.