Can somebody define these terms? I looked up some of the words in google and couldn't understand a thing!

--value
--contrast
--colour key
--symmetrical balance
--asymmetrical balance
--rhythym
--movement
--depth of field
--focal point
--camera angle
--ISO
--grain/noise
--compression
--lens distortion
--Rule of Thirds

You'll have better luck with one or more of these:

http://www.google.com/search?q=photography+dictionary&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a