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Mercury in the Environment
Source Institutions
In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-297.jpg?itok=jXJRbhVY)
Fish Features and Habitats
Source Institutions
In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-371.png?itok=vfQ8oK5z)
Make a "Mummy"
Source Institutions
The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-760.png?itok=8DKLLRkc)
Ocean Home: Swimming Fishes
Source Institutions
In this activity, learners model, on a human-sized board game, how changes in water temperature may affect fish distributions and, ultimately, fisheries.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-901.jpg?itok=GNNHWHeN)
Hold It
Source Institutions
In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-547.png?itok=QlWFhGrM)
Seafood Surgery
Source Institutions
In this hands-on activity, learners discover the similarities and differences between a vertebrate and invertebrate by dissecting a perch and a crawfish.