Convection and Ventilation Current Demonstration Apparatus visually communicates the concept of convection currents. The smoke reveals the flow of convection currents.
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Help students understand the concept of convection currents with this very visual demonstration. Place a lighted candle under one chimney, then use a smoke source over the other chimney to reveal the flow of convection currents. The consequences of ventilation can also be shown by covering the chimneys and removing, in various combinations, the corks in the side panels.
The apparatus consists of a 22 × 9 × 10 cm metal box with a glass front panel, two chimneys, a candle and complete instructions. The demonstration requires a smoke source, such as Touch Paper (AP6015).