Water+Issues+Unit+Planner

=**8.4 Water Issues** = – the distribution of the atmosphere, hydrosphere, lithosphere and biosphere – the distribution of Earth’s total water budget ||  || increase in salinity on common terrestrial and inland aquatic organisms || Students perform a first-hand investigation to compare the relative solubility of Oxygen and Carbon dioxide in water and how the solubility is effected by temperature Students plan and perform first-hand investigations to gather information that demonstrates the effect of varying salt concentrations on plant growth ||  || [|The water cycle] [|The water Cycle and the Murray Darling Basin] || [|NASA video clip on the water cycle] [|Physical and Chemical weathering] || after treatment Water for Life - Government document  Aquaponics || == [|Sydney Water Treatment]  ==
 * ==Syllabus Content== || ==Task/ Activity / Experiment== || ==Resources/ Homework== ||
 * ==**1) Interacting sub- systems of the Earth that together produce a unique biome** ==
 * outline an estimate of Earth’s total water budget and the percentage available for terrestrial organisms
 * identify factors, including geographic position, climate and topography, that determine the present distribution of water on the planet || Students identify data and gather information from secondary sources to construct diagrams representing:
 * **2) Water is an important** **ingredient in the maintenance of Australian environment**
 * explain the importance of water as a solvent in biological systems
 * compare the relative solubility of oxygen and carbon dioxide in water and how the solubility of each changes with temperature
 * predict the potential impact of excessive water evaporation and subsequent
 * * identify common water pollutants that can affect the growth of plankton || gather and analyse information from secondary sources to evaluate the effect of common pollutants, including detergents and fertilisers, on growth of algae in ponds ||  ||
 * * describe the water cycle in terms of the physical processes involved.
 * distinguish between chemical and mechanical weathering || Students gather information from local field examples to investigate the effects of one form of chemical weathering and one form of mechanical weathering
 * **4)** **Water resources**
 * discuss methods used to conserve water including the re-use of water
 * Assess the efficiency of water use both locally and in Australia || Gather information and analyse one method of waste water management and outline the scientific principles involved that allow the re-use of the water

[|Water treatment flow chart]
|| such as pollution, salt water intrusion and ground salinity, and give examples of these problems occurring in Australian environments [|Groundwater Essential]s - pdf Australian Government || gather, process and present information to illustrate the effect on an ecosystem of a change in water availability [|Murry Dowling Basin wetlands] [|Renewable groundwater] article ABC science || [|Floodplan development threatens Maquarie Marshes] [|Basin plan underestimates impact of dams] ||
 * outline problems that may occur in [|ground water]systems,
 * outline problems that may occur in [|ground water]systems,