H

H


 * //__Halogen:__//** Group 17 on the periodic table.
 * Online definition: [|Halogen]
 * [[image:http://farm4.static.flickr.com/3139/2287373275_0d975c1258.jpg?v=0 width="120" height="144"]]
 * Periodic Table of Elements by: [|renny67]


 * //__H-R diagram:__//** A graph that shows the relationship between a stars surface temperature and absolute value.
 * Online definition:[|HR diagram]
 * [[image:http://farm2.static.flickr.com/1432/1062207342_08b119b5c2.jpg?v=1186713767 width="164" height="112"]]
 * Andromeda Galaxy by:[|jpstanley]


 * //__Hypothesis:__//** Explanation that leads to a scientific investigation.
 * Online Definition: [|Hypothesis]
 * [[image:http://farm3.static.flickr.com/2327/1519828360_4cb9465938.jpg?v=0 width="130" height="168"]]
 * Hypothesis & Purpose by: [|phae]