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Effects of Increased CO2 on Seawater Versus Distilled Water
Provided by: CLEAN |Published on: April 27, 2021
Lesson Plans
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Synopsis
- This experiment compares the way that seawater and distilled water absorb carbon dioxide from the air.
Subjects: Chemistry, Earth and Space Sciences
Authors: S. Soria-Dengg, Annika Sabrowski
Region: Global
Languages: English
Teaching Materials
Positives
- The resource offers teachers several methods for graphing the data collected during the experiment.
- The resource includes a diagram and a photo of the setup.
Additional Prerequisites
- Students should be familiar with the pH scale.
- Teachers will need a big transparent basin or a big aquarium, 2 500 ml-beakers, 2 pH Meters, an aquarium pump, plastic tubing, and 2 airstones with regulator valves, seawater, distilled water, 5 candles, a box of matches, and a stopwatch.
- Teachers can make a seawater solution by combining sea salt and water.
Differentiation
- Chemistry classes could discuss how a body of water's alkalinity can either help or harm it when faced with higher carbon dioxide levels in the atmosphere.
- Teachers may want to show students this Khan Academy video on ocean acidification and discuss how the alkalinity of ocean water normally allows it to be a carbon sink, but how the dramatic increase in carbon dioxide emissions has impacted the acidity of the ocean water.
Scientist Notes
Teaching Tips
Standards
Resource Type and Format
About the Partner Provider
CLEAN
The CLEAN Network is a professionally diverse community of over 630 members committed to improving climate and energy literacy locally, regionally, nationally, and globally in order to enable responsible decisions and actions. The CLEAN Network has been a dynamic group since 2008 and is now led by the CLEAN Leadership Board established in 2016.
All resources can be used for your educational purposes with proper attribution to the content provider.
