This is the first of four "engage" activities which students will investigate striped bass and the Estuarine Turbidity Maximum (ETM). Students will view a video illustrating the density differences between fresh and salt water. A second option is for the teacher to make or purchase a density tank from a science supply house. Links are provided in the Lesson Resources section of this page to other density activities utilizing an aquarium tank. 

Teacher Note:  This and the other three "engage" activities (Water Clarity, Striped Bass Larvae, Tidal Rhythms) all can be conducted in one class period or may be split up, as the concepts are introduced throughout the web resource. This activity takes approximately 10 minutes for explanation and video.  If you use a demonstration for explanation plan to take more time.




Lesson Resources

National Science Education Standards

9-12 A: Science as Inquiry

9-12 B: Physical Science

9-12 D: Earth and Space Science

NS.9-12 F: Science in Personal and Social Perspectives