"Eelgrass Ecosystem: Spot the Difference" supports teaching students about invasive species.
In this activity the students observe two different illustrations of the same ocean ecosystem. The first reveals a healthy eelgrass population with many other species enjoying the environment. The second illustration includes the presence of the invasive European green crab and many other species are missing. The students are tasked with identifying the differences between the two illustrations.
The resource includes discussion/observation questions as well as the option to complete a Kahoot quiz after the spot the difference activity. If devices aren't available for the online quiz, questions can be read aloud. Extension activities are also suggested.
The resource supports curriculum outcomes related to biodiversity, habitats and ecosystems. It could be used as a supplemental activity to help reinforce concepts related to invasive species once the terms of invasive, native and non-native have been introduced. It is best suited for the Science curriculum in grades 1-7.
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