Homemade Stethoscope
A stethoscope is an instrument used by physicians to listen to sound inside your body.
You can made a homemade stethoscope using two funnels and a piece of garden hose as shown in the diagram.
![330973: Jancie VanCleave"s Science Through the Ages](http://ag.christianbook.com/g/thumbnail/3/330973t.gif "330973: Jancie VanCleave"s Science Through the Ages") |
Jancie VanCleave’s Science Through the Ages |