The Sun’s Power
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________________________ is created at the core of the sun
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________________________fuse to ________________________in nuclear fusion
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The sun’s ________________________pulls the mass of the sun inward and creates an
________________________that forces 2 ________________________to fuse into one
________________________
Fusion creates ________________________ which make their way to the surface of the
sun and escape to outer space as electromagnetic radiation
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When photons hit Earth’s outer atmosphere, ________________________and
________________________
The temperature on the sun is ________________________°F
Since the formation of the sun ________________________the sun has used up about
________________________ hydrogen it contained at formation
Sun’s Energy Can Be Converted
From solar energy to thermal energy
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Used to produce ________________________for ________________________
Using the sun to heat water to ________________________to turn
________________________to power a ________________________ to
________________________
The US has very few
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9 in the ________________________in California
1 in the desert of ________________________
1 in the desert of ________________________
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From solar energy to electrical energy
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Photovoltaic Cells
Used in
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________________________
________________________
________________________
________________________
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Simply, ________________________ knock electrons from one layer of
________________________ and impurities to another, building up
________________________energy.
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If the two layers are connected by ________________________, a
________________________ is produced.
Drawbacks to Solar Power
Not ________________________in all areas of the world
Takes ________________________for solar power plants
Thermal solar plants “________________________________________________to the
mirrors
Amount of daily sun is not ________________________
Not a ________________________ source of energy
Wind Energy
The wind is an indirect product of ________________________.
The sun heats the ________________________
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________________________, caused by a ________________________and
l________________________ pressures, cause the wind to blow
The ________________________the differences in pressure, the
________________________the wind becomes
Wind energy is VERY popular right now
________________________ gets a higher percentage of its electrictiy from wind than any
other state – ________________________
Texas has the ________________________ (about 10%) and the
________________________ (40) than any other state in the US.
Most ________________________are in the ________________________ of Texas and in
________________________Texas
Ocean Currents
Ocean currents are an indirect ________________________
The sun ________________________
________________________, caused by a difference between water temperature on the
________________________, are one cause of ocean currents
Anyone who navigates the oceans is aware of ________________________and knows to
travel ________________________
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Ocean currents are ________________________that flow from one place to another
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Currents are classified into two types:
1. ________________________
2. ________________________
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Surface Currents
There are ________________________surface currents
The three that affect the United States:
1. ________________________– Originates in Gulf of Mexico, goes up the east coast of
the U.S. and then to Europe and back to the Gulf of Mexico.
England, Western Europe and Scandinavia are bathed in the heat of the Gulf Stream
It is the best known and the most studied
2. ________________________– Flows south from Washington to California, west across
the equator, and by the Phillipines and back across the Pacific Ocean to Washington
3. ________________________– moves from Seattle, up the inside passage of Canada,up
to Alaska and by the Aleutian Islands
Surface currents are caused by ________________________________________________
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This makes ________________________in the Northern Hemisphere and
________________________ in the Southern Hemisphere
The surface currents have been identified by putting
________________________________________________
On May 27, 1999, a cargo ship going from Korea to Seattle lost two of its containers. Six
months later thoursands of Nike tennis shoes began to wash up on the beaches of Oregon,
Washington, Canada, and Alaska
Surface currents have a significant effect of climate
They transfer heat from ________________________areas
The Gulf Stream keeps Great Britian (which is the same latitude as Greenland and Alaska)
________________________ in the winter than would be expected
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Thermohaline currents
Deep ocean currents based on ________________________ because of salt content and
temperature
The more ____________________the water contains, and the ____________________,
the more dense it is
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Near Antartica, the surface water is super ____________________. It is the coldest and
most dense in the world. It sinks deep into the ocean and the warmer, less salty water
comes to the top.
The round trip takes ____________________years.
It is called the ____________________Circulation