1. Cut a
piece of string around the length
of 24– 36
inches, 61– 91 cm, or 2-3
2. Thread the string to go
through the wire coat hanger while
keeping hold of both end of the
3. Hold the ends of the string
in each hand.
4. Using your fingers position
each end of string just in front
of your ears with the string resting
against your face. You may find
it easier if you wrap both ends
of string around each index/pointer
5. Keeping a good grip of
the string carefully walk around
and allow the wire coat hanger
to knock against a few different
objects and listen for the ringing
bells of Big Ben to reach your
The sound of ringing bells travels
up the string/thread to your ears
Note: Be careful not to
swing the wire coat hanger to hard.
it amazing how
Take this experiment outside where
you can have more space and the
freedom from worrying about knocking
things over in your house.
Check out how
Sounds and Vibrations work on our
Science Facts page.