How does the wind affect sound?
The wind carries the sound the way in which it is blowing, so that a noise may be heard much farther with the wind than against it.
Why does water conduct sound faster than air?
Because the particles of water are closer together than the particles of air.
How can we prove that water is a conductor of sound?
When a bell is rung under water, the sound may be heard by any person whose head is beneath the surface of the water.
Does a solid substance conduct sound more rapidly than air?
It does, much more rapidly.
How can we prove this?
When the ear is placed at one end of a log of wood and the other end is struck with a hammer, two sounds will be heard; first, the one coming through the log, and, afterwards, the one coming through the air.