These currents can be seen against a dark backdrop.
Air heated by a candle moves up one chimney while cooler air moves down another to replace the lost air.
Includes: metal box with glass front, two plastic chimneys, candle, and instructions. Smoke source included.
Science Lab Supplies is a leading Convection in Air Apparatus manufacturers, suppliers and exporters that offers wide range of Convection in Air Apparatus at most competitive prices.