Attachments: SCI 207 N Week 4 Lab 4 ES and Alternative Energy (New).docx [ Preview Here ]
Lab 4 – Energy Sources and Alternative Energy
Experiment 1: The Effects of Coal Mining
Coal mining, particularly surface mining, leads to large areas of land being temporarily disturbed. Mines collect and conduct water that is in contact with pyrite, a mineral that produces iron and sulfuric acid when exposed to air and water. Limestone is often used to mitigate the effects of pyrite on water. In this lab, you will see first-hand the reasons why mine drainage can be harmful to the local drainage system if left untreated.
1. Develop hypotheses predicting the effect of pyrite and limestone on water acidity? Why would you predict these effects?
a. Pyrite hypothesis =
b. Limestone hypothesis =
2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Why?
a. Pyrite hypothesis accept/reject =
b. Limestone hypothesis accept/reject =
3. Based on your data, what effect do you predict coal mining has on the environment?
4. Based on your data, why would you use limestone to treat acid mine damage? Utilize at least one scholarly resource to support your suggestions.