Marine Snow

In this lesson, students review the parts of the ocean water column, which consists of the photic and aphotic zones. These two zones play an important role in the formation and distribution of marine snow. Through a PowerPoint presentation, the students gain a better understanding of how marine snow forms, how it is distributed and what role it plays in the Open Ocean food chain. The lesson ends with students completing a zonation exercise that will show they can explain how marine snow forms and the role it plays in the marine ecosystem in terms of the cycles of matter.

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aphotic zone, benthic zone, marine snow, nutrient, oceanic zone, photic zone, upwelling