Show:
Lesson 1 pg 350 - 355
Lesson 2 pg 357-359
Lesson 3 pg 363-365
100
What is weather?
The state of the atmosphere at a given time and place
100
What does the NWS stand for and what do they do?
National Weather Service It collects data for meterologists to use
100
What is climate?
average weather of a region over a long period of time
200
What does air pressure tell you about the weather?
A change in air pressure usually means a change in weather. Low pressure means drier weather, whereas high pressure means colder weather and precipitation is comming.
200
What is the difference betewwn a cold front and a warm front?
A cold front is a boundry ahead of a cold air mass tha tis pushing out and wedging under a warm air mass. A warm front is a boundary ahead of a warm air mass that is pushing out and riding over acold air mass.
200
Why do climates differ from one another?
They differ because of the way the angle of teh sunlight hits the earth.
300
What is relative humidity?
Amount of water vapor in the air compared to teh maximum amount of water vapor in the air.
300
What is a front?
The boundary line between two air masses.
400
How does a theremometer work?
When the temperature rises, the alcohol in the tube expands, when the temperature drops, the alcohol in the tube contracts.
400
What is a high What is a low
Cold area of high air pressure warm area of low air pressure
500
This is the formula to calculate relative humidity: relative humidity = The amount of water vapor in the air air's capacity to hold water vapor X 100 If the water vapor in the air is 5.5 grams and the air's capacity to hold water is 11 grams per cubic meter, what is the relative humidity?
5.5 divided by 11 = .5 mutiply .5 by 100 to get a percentage = 50%
500
What is lightening?
An electric current passing between negative and positive charges