How Asteroids are Formed

December 30th, 2008

photo taken from orbit.zkm.de

I’m sure you may of heard of an asteroid before. These objects occasionally hit the Earth and leave a big crater depending on the size of the asteroid. They are sometimes called “minor planets” and there are literally millions of asteroids scattered throughout our solar system. Asteroids are presumed to be remnants of matter that did not clump during the formation of the solar system. They are composed of rock, dust, and metal. When asteroids are first formed, the metal sinks to the center forming a metal core. The lighter rocks formed layers around the core and then with cooling, the asteroid starts becoming a solid. The first asteroid to ever of been sited was in 1801 by Giuseppe Piazzi.

To read more about asteroids, visit the links below.

Works Cited/Further Reading

http://en.wikipedia.org/wiki/Asteroids

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

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  1. samaa
    May 25th, 2011 at 12:53 | #1

    i hate this lesson

  2. rebecca
    April 3rd, 2012 at 18:23 | #2

    idk

  3. luv lol
    April 3rd, 2012 at 18:25 | #3

    wow this is weird i did not understand a word that said!!!

  4. Faith Lundgren
    October 23rd, 2012 at 16:50 | #4

    that helped alot thank you

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