Changing Planet: Ocean Acidification

This video addresses acidification of the ocean and the ecological and economic implications of the resulting pH change on marine life. It includes information about how ocean acidification resulting from increased absorption of CO2 from the atmosphere is affecting ocean species such as sea urchins and oysters. Scientists from the University of California at Santa Barbara discuss their experiments with sea creatures in acidic sea water. There is an associated lesson plan and classroom activity that has students test the effects of CO2 on water pH.

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Notes From Our Reviewers

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Teaching Tips

Teaching Tips

This video provides background information and images that act as good introduction to a discussion or learning activity about ocean acidification.

It can be used as stand-alone or in conjunction with the related Lesson Plan.

The lesson plan and activity are both long and involved, but provide good grade-level appropriate, hands-on experiences. It is possible to parse this activity into several shorter exercises that could be effective. The last two pages of "thought" questions can perhaps be re-purposed for tests or the like; as is, they are not an engaging way to end the lesson.