Air currents were well understood by Aboriginal people. Demonstrate how the design of a teepee ensures a suitable draft to keep an open fire in the teepee burning. Burn some tobacco in a small dish. Using a feather or your hand or something light and large, demonstrate how an air current will increase combustion. Discuss how air currents affect Aboriginal hunters and their techniques with ducks, geese and other water fowl.
Hunters know that water fowl such as ducks and geese always land in water flying into the wind.
This makes it easier for them to slow themselves before landing and it also increases their ability to fly rapidly away if there is sudden danger. They will usually feed into the wind to maximize their takeoff if danger suddenly emerges. Hunters always ensure that decoys are arranged so that they are facing into the wind. Student will identify different properties of air Pressure as a force and property of air will be understood Student will understand importance of air to combustion Student will understand how air was understood by traditional cultures Air currents and their effects on animal behaviour will be understood.