A lesson in ocean adaptation. Participants are challenged to design a planktonic organism that will sink slowly (or advanced) be neutrally buoyant.
1.) Lay out all the materials (marbles, pipe cleaners, pipettes, toothpicks, feathers for example.
2.) Students create a plankton with the materials
3.) The goal of the “race” is to see who can make a plankton with minimum of 1 small marble sink the slowest.
4.) Students test their plankton in the “ocean” (aquarium) to see if it floats or sinks.
5.) Students continually modify their plankton until they are satisfied/time is up.
6.) 2 students “race” their plankton to see who sinks the slowest. (If a plankton floats on the surface, it is disqualified).