Comparison of the Effects of Increased CO2 in the Air to Seawater and Distilled Water

This well-designed experiment compares CO2 impacts on salt water and fresh water. In a short demonstration, students examine how distilled water (i.e., pure water without any dissolved ions or compounds) and seawater are affected differently by increasing carbon dioxide in the air.

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S. Soria-Dengg
Annika Sabrowski
Patrick Silva
Experiment takes 1.5 hours (30 minutes of preparation, 30 minutes for manipulation, 30 minutes for data analysis and discussion). Additional materials required.

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Teaching Tips

Teaching Tips

Well-described experimental set-up with plenty of sketches and photos that help with using this activity in the classroom.

Description includes photos and diagrams of the setup and charts of possible datasets.

Instructor would have to provide a lot of the context of the activity. This is listed as a demonstration so may have to borrow equipment, but some pieces can be shared between groups (i.e. pH meter and aerator)

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