NOVA: Earth from Space

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NOVA “Earth From Space”
1. They describe at least three teleconnections in the film. The movie talks about sandstorms in the Sahara Desert transforming the rainforest across the globe. Also explained are the waterfalls under the sea in Antarctica, leading to a feeding frenzy in the ocean by the equator. Finally, they talked about streaming water off the coast of Africa causing a disastrous weather storm in the United States. This happens because all of the activity in the ocean, sun and atmosphere are bound together. When an action occurs to one of them, a reaction occurs within another. It’s almost like a butterfly effect that occurs between the three. 2. We can learn and visually see all these different parts of the Earth by using satellites. I. Geosphere (Solid Earth)

The Geosphere is made up of mostly rock. Beneath the surface of Earth, forces inside are a crucial source for the basic materials that nurture life. Volcanoes and earthquakes are examples of reactions to disturbances that initially took place under the Earth’s surface. Although destructive, the natural forces behind these events also provide the materials we and other living organisms need to survive. Through satellites we can see that the Earth’s crust is constantly moving. II. Cryosphere (Ice sheets, glaciers, sea ice)

The Cryosphere can be observed from space using satellites. The reason the Cryosphere doesn’t receive much heat from the sun is because the sun strikes these regions at an oblique angle and any heat that does reach the cryosphere is reflected back into space by the sheets of ice covering it. III. Atmosphere (Gases, clouds, weather)

As water vapor evaporates from the ocean it works its way up into the atmosphere and eventually creates clouds, who size depends on how much water vapor was evaporated. The heat that water vapors carried before they became clouds is eventually what triggers storms to occur. If there is enough heat influencing the...
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