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Critical Thinking in Science Education: Understanding Ocean Acidification and Eutrophication

Explore the importance of pH in living systems and the impact of excess nutrients on ecosystems. Learn about ocean acidification, enzymatic reactions, and the consequences of algal blooms. Develop critical thinking skills in the science classroom.

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Critical Thinking in Science Education: Understanding Ocean Acidification and Eutrophication

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  1. Critical Thinking in the Classroom REPT Program

  2. With science, memorization is important • But that is the 1st step! • Understanding, analyzing is critical

  3. Examples • Ocean Acidification • Why is pH important in living systems? • Why does a change in pH cause issues? • Enzymes • Calcification • So the pH goes from 8.1 to 7.9, is that a big deal? • Important to talk about how pH is measured • How does carbon dioxide change the pH? • How do humans put more carbon dioxide into the atmosphere? • What exactly is burning of fossil fuels?

  4. Eutrophication • What causes an algal bloom? • What does excess fertilizer/sewage do? • Why do organisms need N and P? – find N and P in molecules like proteins, DNA, etc • Excess nutrients cause the phytoplankton that are there to grow uncontrollably • But is that a big deal? Why?

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