This is a multi-day activity where students compare 3 aquatic ecosystems; freshwater, estuary, and marine. First, students research each aquatic ecosystem using the provided texts and collect information in their provided graphic organizer. Then, they teacher provides a water sample from a local aquatic ecosystem and students explore the biotic and abiotic components of the sample to determine which environment it is from and write a claim, evidence, and reasoning argument. Finally, students cre