Convection Of Gas Apparatus, Small, Ventilation Apparatus, Smaller Sized To Fit In Any Classroom Than Standard Convection Of Gas Apparatus, Comprised Of A Metal Box 4inX6inX4in With A Sliding Front Door, Two Glass Chimneys And A Candle Holder.
Convection of Gases Apparatus, consists of a metal box (22x10x11cm) with clear acrylic front panel, two glass chimneys, a candle and a cotton filled wick as the smoke source, Includes activity guide