Learn about the three types of seismic waves with this simple dance from Mrs. Bonnar and Mr. Sargent. Primary waves move back and forth, secondary waves move side to side, and surface waves move in a backwards rolling and sideways swaying pattern. You'll never forget the three types if you can picture Mr. Sargent with his amazing moves!
![](https://i.ytimg.com/vi/u1--pCQNywc/maxresdefault.jpg)