Date: Thu, 10 Feb 2011 11:51:30

Author: Paul Nord

Subject: Re: inexpensive masses?

Post:


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Karen,

Bulk packages of Fender Washers might get you down to 3 cents each. But =
those may still be in the 10 - 20 g range.

Here are some for about 4 cents each:
Amazon.com: IMPERIAL 76302 THICK FENDER WASHER 1/4x1-1/4 - ZINC: Home =
Improvement

Even less expensive option:
Find your favorite engineer and offer to sort his collection of odd nuts =
and bolts.

Paul


On Feb 9, 2011, at 5:01 PM, Karen Hunter wrote:

> I am putting together some experiments on the topics of forces and =
simple machines to do with the 3rd graders at our local elementary =
school, and I'm in need of suggestions for inexpensive objects to use =
for masses / weights.=20
>=20
> I bought a box of washers, which were about 9g and 10 cents each, but =
ideally I'd like to find something where each mass is somewhere between =
20 g to 50 g, and less expensive :).
>=20
> I appreciate any ideas you may have,
>=20
> Karen Hunter
>=20
>=20
>=20
>=20
>=20
>=20
>=20


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Amazon.com: IMPERIAL 76302 THICK FENDER WASHER 1/4x1-1/4 - ZINC: =
Home ImprovementEven less expensive =
option:Find your favorite engineer and offer to sort his =
collection of odd nuts and =
bolts.PaulOn Feb 9, 2011, at 5:01 PM, Karen Hunter wrote:I am =
putting together some experiments on the topics of forces and simple =
machines to do with the 3rd graders at our local elementary school, and =
I'm in need of suggestions for inexpensive objects to use for masses / =
weights. I bought a box of washers, which were about 9g and 10 =
cents each, but ideally I'd like to find something where each mass is =
somewhere between 20 g to 50 g, and less expensive :).I =
appreciate any ideas you may have,Karen =
Hunter<=
/body>=

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From tap-l-owner@lists.ncsu.edu Thu Feb 10 13:07:09 2011

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