In the Conductivity Lab me and my group were instructed to create our own lab and reach a conclusion on which random substances we mixed together with 10 ml of water would conduct electricity when we dissolved it in water. Our control for this lab was Tap Water, because we knew that distilled water would not conduct electricity because of the numerous chemicals that have been cleaned out of it, which tap water would still have conducted. For our indicator to tell us whether it conducted electricity or not is a "ghetto" battery charged tool. There were two lights to tell us whether it conducted electricity or not. Red Dim-low conductor Medium-good conductor High-High conductor
Green Dim-good conductor Medium-good conductor High-High conductor
If both the green and red lights were on together then you knew that this substance was a great conductor of electricity.
5 Substances Used including our control (tap water)
Tap Water-Green -Red/Medium Pure water itself does not conduct electricity and since tap water is not pure, there are a variety of other compounds within it, electrolytes that conduct the electricity through the water.
Citric Acid- Red -Red/Green-Dim Citric Acid can conduct electricity, it is an electrolyte and it carries electricity.
Sugar-Yellow -no color/does not conduct electricity Non-electrolyte substance, that does not produce ions or conduct electricity in water.
Lithium Chloride-Orange -Red/Green When it is not in a solid and there would be free moving ions to conduct electricity.
Fructose-Blue -no color/does not conduct electricity Does not conduct any electricity to turn either the green or the red light on.