Focus Area 5A1: Investigating Australia’s Physical Environments

Weather

Weather varies greatly from day to day. By weather, we mean the immediate physical condition of the lower atmosphere in a particular locality; its warmth, its wetness, its windiness, its cloudiness and so on.

We notice, for example, that temperatures of the air measured with a thermometer at 9 am each day in our backyard change dramatically over the period of say one week whereas temperatures measured in the nearby ocean or in the soil at our feet are much less changeable.  Because atmospheric conditions vary so greatly it is a very challenging task, requiring the best scientific methods available (Plate 1), to predict for our human purposes the kind of weather conditions we can reasonably expect for more than a few days ahead.
   
Figure 1:  Meteorologists are continually improving the technology they use to accurately and consistently measure aspects of our daily weather. This photo shows a Stevenson Screen used to house thermometers for measuring air temperature. Gradually, traditional mercury-thermometers are being supplemented by temperature-sensing probes and electronic devices that can automatically record the temperature and other weather variables at frequent, regular, time intervals (Source: Wikipedia  [Accessed 10 /09/08]).


Outcomes
Students learn about  patterns of:
– climate
– weather
– natural resources
– vegetation