Define
Weather
The state of the atmosphere in a specific location at a specific time
Name some of the weather factors
Temperature
Air pressure
Wind
Moisture
Precipitation
As the water precipitates and falls towards the ground, it collides with other droplets and as a result forms larger drops of precipitation. Lightning might also accompany precipitation and strong winds. What is this?
Thunderstorms
What are Seasons?
Distinct times of the year defined by changing weather, ecology, and daylight hours.
Low Pressure Symbol
L
Temperature
is a measure of the average amount of motion of molecules in the atmosphere.
At what speed are the molecules moving when the temperature is cold outside?
The molecules are NOT moving rapidly. (Conversely, as molecules speed up, the temperature rises as well).
The differences in speed and direction create a rotating plume of air which is parallel to the ground.
Tornadoes
What are clouds?
Clouds are visible accumulations of minute water droplets, ice crystals, or a mixture of both, suspended in the Earth's atmosphere.
High Pressure Symbol
H
Wind
Air moving in one specific direction. The results of differences in air pressure.
Name the types of Fronts
Cold Front, Warm Front, Stationary Front.
A storm which converts heat energy from the ocean into wind.
Hurricane
What is Relative Humidity?
The percentage of water vapor present in the air compared to the maximum amount the air could hold at its current temperature.
What do you call a scientific instrument used to measure wind speed, force, and sometimes direction?
Anemometer
Front
A transition zone between two different air masses at the Earth's surface.
Name the 4 types of precipitation
Rain, snow, sleet, and hail.
Causes flooding, and damage with the strong winds that are at least 119km/h.
Hurricane
What is Air Mass?
A vast body of air, often covering thousands of miles, that maintains uniform temperature and moisture characteristics throughout.
Difference between Weather and Climate
Weather is the conditions in the atmosphere at a particular time and place, while Climate is the average weather for a region based on data collected over a long period of time (usually at least 30 years).
Precipitation
Water that falls from clouds. Precipitation occurs when condensation forms around dust particles and becomes dense enough to fall from the sky.
Tropical, Polar & Temperate.
Natural process where gases in Earth's atmosphere, such as carbon dioxide and methane, trap heat radiated fro the surface, preventing it from escaping into space.
Greenhouse Effect
Explain the Coriolis Effect
It is the apparent deflection of moving objects, such as air currents, water, or projectiles, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, caused by the Earth’s rotation.
Difference between High and Low Pressure Air
High pressure air is cool and dry with clear, calm weather. Low pressure air is generally warm and moist with cloudy, unstable weather.