Ocean Carbon Equilibrium

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Ocean Carbon Equilibrium STEM Case

Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion.

STEM Cases are interactive explorations in which students practice problem-solving and critical thinking as they solve a real world problem as a STEM professional.
  • View students results in realtime.
  • Cases take 30-90 minutes to complete.
  • Student progress is automatically saved.
  • Complete in multiple sessions.


More About STEM Cases

Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.

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LevelDescriptionEstimated Time
High School  This version is for general chemistry classes. 30-45 min
AP  This version is for AP level classes. 40-50 min

Expanded Handbook

More About Handbooks

Most content from the Expanded Handbook is included in the corresponding STEM Case.

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LevelDescriptionEstimated Time
High School  The Expanded Handbook covers rate constants and equilibrium constants in addition to the concepts covered in the handbook section of the High School Case. 15-20 min
AP  This Handbook is identical to the handbook section in the AP Case 15-20 min


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