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David,

We used to use racquetballs but recently found that they survived too
well and didn't always shatter when dropped.  They may have changed the
composition but I'm not sure, they just didn't work as well any more.
Instead we started using a "Spaldeen."  It looks like a pink racquetball
and almost always shatters when dropped from 4' or higher.  We usually
get ours from Fred Myer's but a quick google search brings up several
places on the web to purchase them.  They usually run about $1.50 -
$2.00 per ball.  I hope that helps.

Cheers,
T. Woody Sobey
Education Director
Discovery Center of Idaho
[log in to unmask]
208.343.9895 x245


-----Original Message-----

Hello,

I am hoping fellow ASTC members can help me locate a source for bouncing
balls.

I would think other member science centers perform similar
demonstrations. I am hoping someone knows of a source for inexpensive
hollow bouncing balls. If you can help please contact me at
[log in to unmask] Thank you.

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