This week Sophomore Chemistry students completed a lab to determine how ionically bonded and covalently bonded substances behave in their conduction of electricity. They began this investigation by gaining background knowledge in anions, cations, ionic, and covalent bonds. They were tasked with creating a hypothesis, collecting data, and drawing conclusions based on their data.
The process included having students dissolve sugar and salt in a beaker and using an iron nail and steel screw as electrodes in their anodizing apparatus. Students were a bit disheartened when the sugar solution did not conduct electricity and surprised by their observation of the salt solution conducting electricity. By the end of the lab, students were able to accurately interpret their data and use scientific reasoning to explain their observations.