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The Earth's Atmosphere

Use this webpage to answer the following questions: http://www.ucar.edu/learn/1_1_1.htm

1. The two gases make up the bulk of the earth's atmosphere: are    and .
2. Energy is transferred between the earth's surface and the atmosphere via , , and .
3. The word comes from tropein, meaning to turn or change. All of the earth's weather occurs in the .
4. Most of the water vapor in the atmosphere comes from the and most of the precipitation falling over land finds its way back to the .

Use this webpage to answer the following questions: http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/layers.html

1. Theis the first layer above the surface and contains half of the Earth's atmosphere. occurs in this layer.
2. Many jet aircrafts fly in the because it is very stable. The is a layer with auroras.
3. Meteors or rock fragments burn up in the .

Use this webpage to answer the following questions: http://www.kidsgeo.com/geography-for-kids/0049-atmospheric-pressure.php

1. Scientists called meteorologists use a special instrument called a to measure the pressure of the atmosphere.