Taking a Closer Look at Seaweeds

Students are introduced to seaweeds, the marine algae, by thinking about ways in which humans use them for foods and other products. They then engage in a scavenger hunt in which they learn to recognize and describe common native seaweeds. Looking at the term seaweed, students ponder the meaning of the term weed, and discuss whether, and under what circumstances, seaweeds should be considered weeds. The lesson closes with connections to the on-going bottle aquarium project, pointing out that the elodea and duckweeds are aquatic plants, not seaweeds.

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aquatic plant, endemic, food chain, food web, indigenous species, introduced species, invasive species, marine algae, native species, seaweed