Blue Sky: How do Particles in the Atmosphere Cause the Sky to Look Blue and the Sun to Look Yellow? (page 2)
Sunlight travels about 93 million miles through space to reach the outer edges of the earth's atmosphere. The earth's atmosphere is divided into layers. Starting with the outer layer, their names are exosphere, ionosphere, mesophere, stratosphere, and troposphere. Find out more about the earth's atmosphere and draw a diagram of the earth and its atmospheric layers.
Each atmospheric layer differs from the others in distance from the earth, presence of air, temperature, color, and what occurs in it. On one side of the diagram, indicate where each layer begins and the distance from its starting point to the earth. While the diagram will show a specific starting point for each layer, remember that there is no real barrier dividing each layer. Label the temperature of each layer on the other side of the diagram. Find out about air composition and events that occur in each layer.
Which layer is responsible for the earth's weather? Add drawings and labels to the diagram showing such things as the location of clouds, the aurora borealis, the path of the Concord, the jet stream, and where meteors burn up.
Check it Out!
Sunlight contains more than just colored light waves. Some of the waves are high-energy waves called ultraviolet light waves, which can destroy living cells and tissue. Find out more about ultraviolet (UV) light. How is it involved in the production of the ozone layer? How does the ozone layer prevent UV rays from reaching the earth? How does the ozone layer affect the temperature of the earth's atmosphere and surface?
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