Caroline Singler (TAS 2010) shared her TAS experience aboard the USCGC Healy in the Arctic and hands-on activities that demonstrated how sound waves travel through the air, water and solids at the American Association for the Advancement of Science Family Science Days on Saturday and Sunday, February 16-17, 2013 in Boston, MA. Children saw how longitudinal waves look using a slinky to send compressions from one end to the other. Then they were able to see vibrations ripple through water as they hit tuning forks and held them on the surface of a beaker full of water. Ms. Singler explained how multi-beam sonar is used by the Healy to map the seafloor and the reasons why it is important to create bathymetric maps. An example of a bathymetric map was on display as well.