Teacher manual for Advanced Environmental and Earth Sciences labs. Has both the printed version and a flash drive with teacher tips, a PDF of teacher version and editable Word student version.
Air Pollution & Acid Rain
Use a pH sensor to investigate chemical reactions important in the formation of acid rain to understand the relationship between man-made emissions, acid rain, and problems arising from acid rain.
In this activity, students investigate chemical reactions that are important in the formation of acid rain to better understand the relationship between certain types of man-made (anthropogenic) emissions and problems arising from acid rain. During this investigation, students:
- Determine the effect of different anthropogenic gases on the pH of water.
- Discuss the effect of changes in the pH of water on the environment.
Sample Lab - Air Pollution and Acid Rain (741 KB – PDF)
Students gain experience conducting the following procedures:
- Learning the chemical reactions involved in generating three types of gases (CO2, SO2, and NO2) that are common anthropogenic emissions.
- Measuring the effect of CO2, SO2, and NO2 on the pH of water using a pH sensor.
- Analyzing the chemical reactions that lower the pH of rain.
Sensors / Equipment Used:
MultiMeasure sensor that incorporates pH, conductivity, temperature, and the optical dissolved oxygen probe.
1 M HCl - 15 mL
1-hole rubber stopper for flask
Erlenmeyer flask, 50-mL
Flexible Teflon® tubing to fit glass tubing - 20 cm
Glass tubing for rubber stopper
Graduated cylinder, 50- or 100-mL
Graduated pipet, 4-mL and pipet bulb
Sodium bicarbonate - 5 g
Sodium bisulfite - 5 g
Sodium nitrite - 5 g
Wash bottle containing distilled or deionized water
Water or deionized water - 1 L
Your Bundle Options:
Starter Sensor bundle designed for use with Advanced Environmental and Earth Sciences Solutions.
Standard bundle for Advanced Environmental and Earth Sciences Teacher Guide,