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You have a ping pong ball
at the end of a curvy, long, skinny hole
in the ground. You want to get it out but
you can't stick your hand in it won't reach
or fit. A string won't work because you
won't be able to attatch it.
What can you do to get it out without digging
a hole?
Put water in the hole.
The pingpong ball is light and will float
to the top!
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