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The Sun. The Illuminating Facts. http://hyperphysics.phy-astr.gsu.edu/hbase/solar/sun.html#c1. Composition. 71% hydrogen 27.1% helium less than 2% of all other elements Oxygen, Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron and Sulfur
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The Sun The Illuminating Facts
http://hyperphysics.phy-astr.gsu.edu/hbase/solar/sun.html#c1
Composition • 71% hydrogen • 27.1% helium • less than 2% of all other elements • Oxygen, Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron and Sulfur • The mass of the sun is over 99.8% of the mass of the entire known solar system http://hyperphysics.phy-astr.gsu.edu/hbase/solar/sun.html#c1
Distance • From the sun to the Earth is 149,000,000 km. • This equals 1 AU (Astronomical Unit). http://hyperphysics.phy-astr.gsu.edu/hbase/solar/sun.html#c1
Energy • Almost all life on earth is maintained by energy from the sun. • Plants synthesize sugar molecules from carbon dioxide and water. • This energy can then be transferred to other organisms and utilized throughout a food web. http://www.project2061.org/publications/sfaa/online/chap5.his insufficient, tm
The amount of life possible that any environment can sustain is limited to the basic resources of energy, minerals, and water. • When the inflow of resources desertification and depletion of minerals occurs. http://www.project2061.org/publications/sfaa/online/chap5.his insufficient, tm
The Entire Sun (NASA) • http://www.youtube.com/watch?v=qLB5ma2Yz1I • http://www.youtube.com/watch?v=uK4a7kWb6Ro&feature=related