Subject: black stuff appears on metal when fire.
Date: Thu Jul 8 19:42:27 1999
Posted by Rinoc
Grade level: 4-6
School: No school entered.
City: Vaughan State/Province: Ontario
Area of science: Physics
There is a candle on the table, you take a metal knife and put
it over the fire. Some black fumes rise and when you look a the
knife you find some black stuff that comes off when you rub it.
It also happens to various other objects. What is it and how
does it form?
Re: black stuff appears on metal when fire.
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