Atmosphere, Climate, and Weather

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Atmosphere, Climate, and Weather (26:00)
Item# 34726

People everywhere are interested in the weather, but how does it all work? Beginning with Earth’s atmosphere—its evolution, its gaseous composition, and its four regions—this video takes a close look at how conditions combine to create climate and weather. Topics include the Köppen Climate Classification System; weather prediction; types of clouds and precipitation; thunderstorms, tornadoes, and hurricanes; and weather patterns such as El Niño and La Niña. A viewable/printable instructor’s guide is available online. Correlates to National Science Education Standards, National Educational Technology Standards, and Standards for the English Language Arts. A Cambridge Educational Production. (26 minutes)

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Segments in this Video - (6)

1. Weather and Climate (04:25)
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Climate describes the average weather of a region over a long period of time. Ice cores and rocks record the earth's changing climatic cycles over thousands and millions of years.

2. Forecasting Weather (02:42)

The study of meteorology begins with the invention of the barometer in the 17th century. Scientists now predict weather much more accurately because of advancing techniques and technology.

3. Atmospheres and Gases (04:07)

Earth's atmosphere evolves over four billion years to consist primarily of nitrogen and oxygen. Important trace gases called greenhouse gases maintain the warmth and moisture necessary for life on our planet.

4. Classifying Climatic Regions (03:28)

The Koppen system categorizes five types of climate, from tropical to polar, according to temperature and precipitation. Other factors such as the Earth's rotation and movement of air masses further affect the weather.

5. Clouds, Precipitation, and Storms (03:42)

Clouds give clues about the conditions in the atmosphere and are classified by form and altitude. Seasonal storms around the world include tornados, thunderstorms, and hurricanes.

6. Ozone Hole (05:36)

Scientists, suspecting that current climate changes result from ozone depleting chemicals and increasing carbon dioxide, search for solutions to global warming.

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