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 Blog Entries
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 Benthic macro    The upper to pics are scuds and the bottom pic is the tale of a stonfly. Article posted November 3, 2011 at 10:26 AM • comment (2) • Reads 1794 • Return to Blog List Add a CommentPosted Comments  it is a stonefly =)
Comment Posted on November 7, 2011 at 10:24 AM by
mollyhwhat the heckis the bottom pic lol????????
Comment Posted on November 4, 2011 at 10:10 AM by
hunterp |
 About the Blogger Acidic and basic are two extremes thatdescribe chemicals, just like hot and cold are two extremes that describe temperature. Mixing acids and bases can cancel out their extreme effects; much like mixing hot and cold water can even out the water temperature. A substance that is neither acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Each whole pH value below 7 is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6. The same holds true for pH values above 7, each of which is ten times more alkaline—another way to say basic—than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9. |
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