Sheep were the basis of their wealth, and by 1850 there were more than 15 million head in Australia. Squatting was legitimized in 1836, after the British government recognized the impossibility of enforcing the original settlement restrictions.
When sugar is dissolved in water, the solution does not conduct electricity, because there are no ions in the solution. Some substances that are made of molecules form solutions that do conduct electricity. Ammonia is such a substance.
Some substances when dissolvedin water to produce a solution will conduct an electrical current. Such substances produce ions when dissolved in water, and it is the ions which carry the current through the solution.The research aspect of this science fair project is to use a conductivity device to determine if various substance dissolved in water can or cannot conduct electricity.his science fair project focuses on the use a conductivity device that will enable the investigator to determine if a substance dissolved in water can or cannot conduct electricity and if it can, what type of conductor (electrolyte) it is.