26 chickaDEE 26 chickaDEE
Grab
two
friends
and
learn
how
sound
travels!
Grab
two
friends
and
learn
how
sound
travels!
Hear
Me?
What to do:
1
Use a pencil to
poke a hole into the
bottoms of three cups.
2
Thread one end of
the string through the
first cup and the other
end through the second
cup. Tie a big knot at
the end of each string.
3
Thread another string
through the third cup
and tie it to the middle
of the other string.
4
Have everybody take
a cup. Stand far enough
away from each other so
that the string is
pulled tight and it
doesn't touch anything.
5
Ask your friends to
hold the cups up to their
ears. Whisper something
into your cup. Did your
friends hear you?
Hear
Me?
Can
You
You'll need:
• a pencil
• three paper cups
• three pieces of string,
maximum 4 meters
(13 ft.)
• two friends
Haha!
Ooze's Challenge
1. Try using different types of
string, like yarn, fishing line,
thread and twine. Which one
carries sound the best?
2. What happens if the string
isn't pulled tight?
3. How many more people can
you add to the experiment?
Can you answer Ooze's
questions?
