Vocabulary
Moisture condensed in the atmosphere that falls visibly in drops.
Rain
These air masses move with molecules spread apart and tend to rise.
Warm Air mass
Which of the following is the cause of the change of the seasons:
1. the distance of a place from the equator.
2. the tilt of the Earth's axis.
3. prevailing winds blowing across land and water.
4. the rotation of the Earth.
The tilt of the Earth's axis.
The definition of weather is:
the state of the atmosphere at a particular time and place.
Name a tool used by meteorologists to determine weather predictions
1. barometer
2. hydrometer
3. thermometer
the perceptible natural movement of the air, created by the movement of air masses.
Wind
This air mass moves with molecules packed closely together and tend to sink.
Cold Air Mass
Why does the equator experience about the same temperature year-round?
the sun's rays strike the equator at about the same angle all year.
How do landforms affect the weather?
1. High locations are cooler than lower locations
2. Mountains can block the path of storms or split them
3. Landforms can block winds which affects temperature, humidity, and rainfall.
4. bodies of water can add humidity to the air or heat.
How do ocean currents affect air masses and thus the weather?
the cold and warm water circulates from one region to another, bring warm and cold fronts with it.
The proces of a substance changing from its liquid to its gaseous state.
Evaporation
This is a boundary separating air masses of different characteristics
A front
What area of the Earth is generally more humid?
Near bodies of water
air pressure is
the downward force caused by the weight of air molecules on the surface of the Earth.
Air pressure moves in which direction?
from cold high pressure to warm low pressure
A warm body of air that reflects the conditions of the surface below.
Warm Air Mass
When a warm air mass meets a cold air mass, these 3 things will happen:
1. Warm air will rise
2. Rain will be produced
3. Clouds will be produced
What area of the Earth is generally more dry?
Land locked areas of the continents
Humidity is
the amount of water vapor in the air.
Explain what a stationary front is
When warm and cold air masses meet but have similar temperatures and pressure, it creates a stationary front that doesn't move. Creates thunderstorms and tornadoes.
A cold body of air that reflects the conditions of the surface below it.
Cold Air Mass
When a cold front approached a warm front, this type of weather will be produced:
1. Decreased temperature
2. Thunder clouds and rain
When the sun beats down on the Tropics and causes what molecules to evaporate into the air mass above it?
Water
Name the 5 Factors that impact the weather
1. Sunlight/Temperature
2. Humidity
3. Air Pressure
4. Ocean Currents
5. Landforms
Explain what an occluded front is
When a cold from overtakes a warm front and creates cold, wet, and windy weather. Creating heavy rain, strong winds, thunderstorms, hail, and snow.