Uploaded April 2016 | Updated September 2026, 2 hours ago
This demonstration is designed to challenge people’s expectations about ocean acidification. They will compare what happens when a familiar acid (lemon juice) and an acidifying gas (carbon dioxide) are added to a nontoxic pH indicator solution. The surprising result helps engage them in a discussion about what ocean acidification is (and what it is not), and sets the stage for the ‘Hold Your Breath’ activity. Download the companion .pdf file, ‘A Tale of Two Acids Demonstration Protocol’, from Washington Sea Grant's Ocean Acidification webpage:
https://wsg.washington.edu/our-northwest/ocean-acidification
This demonstration is designed to challenge people’s expectations about ocean acidification. They will compare what happens when a familiar acid (lemon juice) and an acidifying gas (carbon dioxide) are added to a nontoxic pH indicator solution. The surprising result helps engage them in a discussion about what ocean acidification is (and what it is not), and sets the stage for the ‘Hold Your Breath’ activity. Download the companion .pdf file, ‘A Tale of Two Acids Demonstration Protocol’, from Washington Sea Grant's Ocean Acidification webpage:
https://wsg.washington.edu/our-northwest/ocean-acidification
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Ron Sims (pt 1), former Deputy Secretary, U.S. Dept. Housing & Urban Development Address to the Washington Sea Grant Symposium on Ocean Acidification")
