Sampling+(population+statistics)


 * __[[image:element_chlorine.gif width="144" height="135" caption="Chlorine facts"]][[image:chlorine_tablets.jpg width="270" height="327"]]What is sampling?__ [1]sampling chlorine is when you take the chlorine sample from water. The reason you sample the chlorine is because if you have to much chlorine it will be dangerous to animals, plants, and humans. When you do test the sample make sure that you take the sample in the same place and time as the bacti sample. Chlorine is element number 17. It has the "atomic weight" if 35.45 grams. Chlorine also can be a liquid or a gas.**

__**refrences [1]** Montague, Mike.- Detectives Notebook [2][|Sampling picture]` [3[|various facts about chlorine]__