Activity

Temperature, Salinity and Water Density

This Temperature, Salinity and Water Density activity also includes:

The difference between sinking and floating may be a little salt. Young experimenters analyze the effect of salt and temperature on the density of water. They use their results to predict the effect of climate change on ocean ecosystems.

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Instructional Ideas
  • Expand the experiment to a variety of liquids to compare with the water results
  • For a quantitative analysis, have pupils collect mass and volume information to calculate densities
Classroom Considerations
  • Expects a solid understanding of density
Pros
  • Adaptable to a range of grade levels
  • Provides reflection questions to help process results
Cons
  • None
NGSS