HOW TO FLOAT AN OBJECT WITH HELIUM IN AN AIR TIGHT BOX?

Subject: HOW TO FLOAT AN OBJECT WITH HELIUM IN AN AIR TIGHT BOX?

Date: Mon Jan 21 15:46:18 2002
Posted by STEVE BLAIR II
Grade level: 4-6 School: SMACKOVER ELEMENTARY SCHOOL
City: SMACKOVER State/Province: AR. Country: USA
Area of science: Chemistry
ID: 1011645978.Ch

Message:


I BUILT A PLEXIGLASS BOX(17.5"X17.5"X21" TALL) I SEALED THE SEAMS WITH EPOXY SO 
THE HELIUM WOULDN'T LEAK OUT.  I HAVE A HOSE ATTACHED TO THE HELIUM TANK 
THROUGH THE PLEXIGLASS(SEALED WITH SILICONE II AND EPOXY).  WHEN I TRY TO FLOAT 
A BALLOON THAT I BLEW UP WITH MY BREATH THE BALLOON DIDN'T MOVE.  I HAVE THE 
HOSE LOCATED AT THE BOTTOM OF THE BOX.  THE BOX IS AIR TIGHT, I'M CAREFUL NOT 
TO FILL THE BOX WITH TOO MUCH HELIUM TO BUST THE GLASS.  ANY HELP WOULD BE 
APPRECIATED.  THE SCIENCE FAIR IS ON FEB. 7,02.  THANKS STEVE BLAIR II.

Re: HOW TO FLOAT AN OBJECT WITH HELIUM IN AN AIR TIGHT BOX?

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