Thank you, thank you, thank you!  Actually, my daughter should be writing
this email, and she will (when she gets home).  You ideas for my
daughter's fourth grade experiment have been terrific.  My daughter,
Bess, will post her results to all of you, as well as her exact method.
Any other suggestions are still appreciated...
Lee-Ann (still nomail, but missing the digests everyday...I think I'm
having withdrawal symptoms!)