Have an old slinky collecting dust in the kids' toy box? Pull it out and teach a quick lesson on the two types of waves. 1. Loosely stretch the slinky across the floor or long table with you holding one end and your child holding the other. 2. Create a transverse wave by shaking one end of the slinky horizontally across the floor or table. Continue shaking back and forth to set up a series…
Cheryl TaylorMay 5, 2014