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Science Chapter 9
Weather
21
Science
8th Grade
11/11/2010

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Cards

Term
What is the study of the atmosphere called?
Definition
Meteorology.
Term
What is the condition of the atmosphere at any given time ?
Definition
Weather.
Term
What are the five parts of weather?
Definition
-Temperature
-Atmospheric Pressure
-Humidity
-Wind Speed and Direction
-Precipitation
Term
What is temperature?
Definition
Amount of thermal energy in the air
Term
What is atmospheric pressure?
Definition
The gases in the atmosphere have weight.
Term
What is humidity?
Definition
The amount of water vapor in the air.
Term
What are the two types of humidity?
Definition
Absolute and Relative.
Term
What is the total amount of water vapor a certain volume of air hold?
Definition
Absolute Humidity.
Term
What is the ratio of the amount of water the air does hold to the amount of water that it can hold at a given temperature
Definition
Relative Humidity.
Term
What is wind?
Definition
The movement of air over the ground.
Term
What is wind speed?
Definition
The direction from which the wind is coming.
Term
Any form of water that falls to the earth’s surface from the sky is called ____________.
Definition
Precipitation.
Term
What is the most common type of precipitation?
Definition
Rain.
Term
What is the lowest level in the atmosphere?
Definition
Troposphere.
Term
What is another name for the troposphere?
Definition
Weather layer.
Term
What is the steady drop of temperature in the atmosphere called?
Definition
Lapse Rate.
Term
What is the second layer in the atmosphere?
Definition
Stratosphere
Term
What is the order of layers in our atmosphere from lowest to highest?
Definition
Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.
Term
What is air made up of?
Definition
78% Nitrogen, 21% Oxygen, and 1% Other.
Term
Who discovered nitrogen?
Definition
Daniel Rutherford.
Term
Who discovered oxygen?
Definition
Karl Scheele and Joseph Priestley.
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