thermodynamics.gif (19136 bytes)

CANDLE AND CHIMNEY - CONVECTION








EQUIPMENT
    redball.gif (326 bytes) Double Chimney Apparatus
    redball.gif (326 bytes) Touch Paper
   


NARRATIVE
            This demonstrates that warm air rises and cooler air falls. Light the candle and close the cover of the convection device after a few seconds. Ignite a piece of touch paper and hold it at the mouth of the chimney without the candle under it. Smoke will be drawn down this pipe and expelled from the other.