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Joanna-2389

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Joanna

Zinc

What are the properties of zinc?
12:47 Thu 02nd Aug 20011 answer, last by comeleon 18:23 Wed 08th Aug 2001
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Joanna

Zinc and Astringency

Why does zinc taste astringent? In toothpastes, for example?
12:25 Thu 02nd Aug 20011 answer, last by kath knapp 13:44 Mon 22nd Oct 2001
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Joanna

Popping candy

How does popping candy work?
08:55 Tue 10th Jul 20012 answers, last by Waterwolf 16:01 Wed 11th Jul 2001

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