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Handout
University of California

University of California: Seawater Density & Salinity [Pdf]

For Students 9th - 10th
Describes the properties of seawater and the variations depending on its location, e.g., near a shoreline, in an estuary, or as sea ice. Discusses the instruments scientists use to measure the density of water and explains other...
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Activity
Science Buddies

Science Buddies: Buoyancy of Floating Cylinders

For Students 6th - 8th
This project presents an interesting puzzle. A disk of wood will float face-up, that is, with its circular cross-section parallel to the surface of the water. A long log of wood, however, floats with the circular cross-section...