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This site offers 8 environmental experiments:
Experiment 1: Measuring pH
Experiment 2: Determining the pH of Common Substances
Experiment 3: Making a Natural pH Indicator
Experiment 4: Measuring Soil pH
Experiment 5: Soil Buffering
Experiment 6: Observing the Influence of Acid Rain on Plant Growth
Experiment 7: Observing Buffers in Lakes, Ponds, and Streams
Experiment 8: Looking at Acid's Effects on Metals
This resource is part of the Biology Links for One Laptop Per Child course which contains units on Exploring Life; The Cell; Genetics; Mechanisms of Evolution; The Evolutionary History of Biological Diversity; Plant Form and Function; Animal Form and Function; Ecology; and Astrobiology.
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