Acid Rain And How It Affects Our Environment Return to Biology
Index Iftner, George Schools, various Demonstrate
phenomenologically the effects of acid rain on our environment
and perform long-term "real-time" experiments. 6 Petri dishes,
pipette, large bell jar or similar item, sulfuric acid, two
2-liter soft drink containers, 4 small pieces of marble or
limestone, continuous strip of chart paper approximately 3 ft by
6 ft, pastel crayons or markers, small growing plant, 4 small
pieces of raw fish, 2 green leaves, small amount of soil. 1. 2
or 3 days in advance, prepare Petri dishes with soil & stone,
leaf, and raw fish. One set is to be watered with distilled
water, the other wetted thoroughly with 50% sulfuric acid. Keep
hidden from 2. Prior to the lesson, a) cover an area of
chalkboard or wall with the drawing paper; print OUR ENVIRONMENT
at the upper right. b) set out the Petri dishes prepared in #1
above, but keep covered from view for the moment. c) make 14
slips of paper, each with one of the followin