This Density lesson plan also includes:
Ninth graders predict when an object will sink or float based on comparison of the density of the object to the density of the substance in which it is placed.
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Density Column Lab - Part 2
Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the liquids...
7th - 9th Science CCSS: Designed