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Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
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firewatch

Happy and Sad balls appear the same, but do they have the same properties? Bounce the balls, put them in the freezer, heat them in boiling water, compare their densities—observe the very interesting results.

Concepts

  • Polymers
  • Density
  • Mass
  • Volume
  • Temperature
  • Specific Gravity
  • Materials Science