 | To create "wind", cover an aquarium with a lid of some type
(foil will work) leaving an opening of about 1 to 2 inches on each end.
|
| On one end put a bowl of ice, on the other put heat of some type, burner,
candle, etc. (adult supervision required!).
|
| Next take a lit cigar or other smoke producing item and hold it over the
end of the opening with the ice.
|
| As cold air sinks (known as a stable condition) it flows downward.
|
| When the smoke moves to the side of the container with the heat it will be
forced upwards as the heated air rises (unstable condition). |
