science education

Exploring Nature Science Education Resource:

Life Science, Earth Science, and Physical Science Resources for K-12

The Sun

The Sun

 

Some Important Facts About the Sun:

  1. The sun is really just a star.
  2. It is 864,900 miles wide (1,392,000 km wide). That makes it 330,000 times bigger than the earth.
  3. It is 11,000° F (6,000°C) on the surface.
  4. Its spinning force acts like a big magnet. It rotates unevenly creating magnetic fields.
  5. The outer most layer of the sun is called the corona. It is 620,000 miles (1,000,000 km) thick.
  6. The 2nd layer of the sun is the chromosphere. It is from here that jets of gas explode off the surface of the sun.
  7. The actual physical surface of the sun is the 3rd layer, the photosphere. It is made up of granules of gas bubbles boiling on the sun's surface.
  8. Sometimes sunspots appear on its surface. They are areas of cooler, darker gas. How many sunspots we see varies in an 11-year sunspot cycle.
  9. Loops of the sun's magnetic field sometimes burst into space. They are called prominences.
  10. Gas particles (plasma) escape from the sun’s surface and fly through space gaining speed as they go. This is called solar wind. When it reaches Earth, we are protected from it by our planet's magnetic field.
  11. The solar particles that do make it through to reach the earth's atmosphere cause something called auroras, which we can see in the night sky. They can also cause radio and electrical problems on Earth.
  12. The Earth is 93 million miles from the sun.

 

Citing Research References

When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).

When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.

Here is an example of citing this page:

Amsel, Sheri. "The Sun" Exploring Nature Educational Resource ©2005-2019. July 23, 2019
< http://www.exploringnature.org/db/view/The-Sun >

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