Abstract
The purpose of this experiment was to determine if limestone applied to the soil, can protect Dwarf Alberta spruce trees from acid rain.
8 Dwarf Alberta spruce trees of the same age are needed. Label two trees experimental 1, two trees experimental 2, two trees experimental 3, and two trees control. Sprinkle 14 grams of limestone directly on the soil of each tree in experimental 1, and 28 grams of limestone directly on the soil of each of the two trees in experimental 2. Apply the limestone on the same day of the week on Wednesday. Do not sprinkle limestone on the trees in experimental 3 or in the control. Pour 120ml of acid rain directly onto the soil of each of the two trees in experimental 1,2, and 3. Apply the acid rain on Wednesday and Saturday. Pour 120ml of tap water directly on the soil of each of the two trees in the control. Conduct this experiment over a four week period.
The two trees in experimental 2 were protected the best because the most limestone was added to these trees. the two trees remained healthier than the trees in experimental 1 and 3. In experimental 1 and 3, the needles turned tan and dry and many needles fell off. The trees in experimental 1 and 3 were similar because 14 grams of limestone added to the trees in experimental 1 was not enough to neutralize the acid rain.