The sun is a 4.6 billion year old, yellow, medium sized star with dark storms called sunspots. A sunspot it a dark storm that is cooler than the rest of the sun. One sunspot could hold a few earths. Sunspots usually appear in groups. The sun is made of different kinds of gasses.

Galileo was one of the first people to discover the sunspots. The sun was first discovered by the Ancients. The date the Ancients discovered the sun is a mystery. The Greeks call the sun Helios. The Romans call the sun Sol.

The sun is only half its way in life, that means it will soon get bigger. The sun is the largest star and object in our solar system, It  is so big that you could fit 1 million earths in it. There is a star that is way bigger than the sun and its name is Betelguese. The suns diameter is 863,700 miles. The sun is 1,000,000 kilometers going from left to right.

The sun is very hot, that's how the earth gets heat. The suns core is 15 million Kelvin's hot.

The sun has 98% of the matter in our solar system, the other 2% goes to everything in our solar system, like: the planets, comets, asteroids, etc. The sun is made up of 92.1 % hydrogen and 7.8%  Helium, and other different kinds of gasses. The sun was formed by a huge cloud of gas and dust.
 

The sun has 6 layers, Chromosphere, Radiation Zone, Convection Zone, Photosphere, Corona, and Core. The core is the center part of the sun. The chromosphere and radiation zone are just two outer layers of the sun. The photosphere is the only part of the sun that you see. The corona is the outermost layer of the sun. The chromosphere is a red circle around the outside of the sun.

Solar Wind are gasses that shoot out of the sun when it's active. Solar Winds stream out in all different directions from the sun, they could go as far as 1 million miles per second.

Even though the sun is far from earth, it is the closest star to earth. All the planets revolve around the in a path called an orbit.  The sun spins on its axis east to west.

Credits:

Sun Pictures: http://www.astronomy.com/asy/default.aspx?c=a&id=1081

http://stardate.org/resources/ssguide/sun.html

http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/solar_system.html

http://zebu.uoregon.edu/~soper/Galaxies/types.html

http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/sun.html

http://www.space.com/scienceastronomy/solarsystem/sun-ez.html

http://www.bbc.co.uk/science/space/solarsystem/sun/index.shtml

http://www.nineplanets.org/sol.html

http://antwrp.gsfc.nasa.gov/apod/ap980322.html

http://stardate.org/resources/ssguide/sun.html

http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts&System=Metric

http://www.eyeonthesky.org