A pencil is stiff. A rubber band is bendable. Why are some objects stiff and others bendable? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between stiff and bendable objects.
(Tags : Is It Stiff or Bendable?: Properties of Materials (Unabridged) Lisa J. Amstutz Audiobook, Lisa J. Amstutz Audio CD )
