Impacts of climate change – CO2 emissions and ocean acidification (teacher instructions)
These instructions provide background information on the content and practical notes on conducting the “CO2 emissions and ocean acidification” experiment.
• In place of the digital pH meter, the students can use a swimming pool test kit, also called a pool tester. If they use a pool tester, no colored liquids should be used (such as a colored acidic soft drink) because the color can distort the measured value.
Litmus paper is not recommended for this experiment since the measurements are not precise enough.