Sulfur DioxideSulfur DioxideBurning coal creates
smoke, just like burning wood in a fireplace.
Coal smoke is air pollution.
How Acid Rain is FormedHow Acid Rain is Formed1. Burning coal at a
factory puts pollution in the air.
2. The pollution mixes with water in the clouds.
3. Wind carries the polluted clouds.
4. When it rains, the water is also polluted – “acid rain.”
Environmental ProblemsEnvironmental Problems
pH Scale: Acids & BasespH Scale: Acids & Bases14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Base
Acid
Drain Cleaner
Bleach
Soapy Water
Ammonia
Milk of Magnesia
Baking Soda
Sea Water
Pure Water
Healthy Lake (6.5)
Clean Rain (5.6)
Acid Rain (4.3)
Orange Juice/Vinegar
Lemon Juice
Sulfuric Acid
Battery Acid
National pH LevelsNational pH Levels1990 2010
Statue of LibertyStatue of Liberty
Acid Rain Impact on Lady LibertyAcid Rain Impact on Lady Liberty
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