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Mt. St. Helens
Its proved that trees and animals are back at Mt St. helens. After the explosion.
Article posted October 3, 2011 at 04:10 PM •
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How many animals did you see at Mt.st. Helens????? Although I did see deer up there at Cispus very cool nice job.
Comment Posted on November 1, 2011 at 10:24 AM by
Agreed. When we were at Cispus, and we went to Mount St Helens, I saw a mouse, and lots of trees.
Comment Posted on October 4, 2011 at 03:47 PM by
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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.