Floating Density Spheres
Product Number: SB48430
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Grades 8-12. A set of six solid plastic spheres and all the materials needed for producing and using a density gradient. The spheres float at different levels in the gradient as a result of their different known densities. The densities of additional small material specimens (included) may be determined by dropping them into the gradient and noting which sphere they float alongside. Requires water and corn syrup, sugar, or salt (not included).