Thermodynamics > Gas Laws DCS# 4E20.40

MARSHMALLOWS IN A VACUUM



APPARATUS
vacuum pump 001
bell jar with manometer 101-04-C
vacuum hoses, connectors, hose clamps 101-04-C
marshmallow IGA

DESCRIPTION
Place marshmallows in bell jar, on raised plate, and evacuate chamber.  Marshmallows expand as surrounding pressure drops.  Admit air into bell jar and marshmallows collapse dramatically.

 NOTES

Alternatively, use marshmallow chicks, marshmallow man, shaving cream, or a partially filled balloon.

bell jar and vacuum pump