Charles DH Williams wrote:
The exposure to fumes by a child will likely be minimal but, as
the purpose will be 'educational', there may be a duty to employ
best practice so they end up knowing what a safe workstation is
like.

My first serious soldering was a Knight-Kit at age 14, and I started
working full-time as a TV serviceman at age 16. I'm here to tell you
that the fumes haven't affected my cheese. Watch it, spaceman, you're
crushing my petunias. Nerts. Hot solder pie with crunchy plumbing, yum.
No ill effects whatever.

--
"The Democrats are all over this. Democratic strategists feel John Kerry's
war record means he can beat Bush. They say when it comes down to it, voters
will always vote for a war hero over someone who tried to get out of the war.
I'll be sure to mention that to Bob Dole when I see him." -- Jay Leno