Exploring Changes in Matter Lab
Exploring Changes in Matter The question we were trying to answer was "Which changes are examples of a chemical change, and which are examples of a physical change". During our investigation we had five different scenarios where we had to combine two substance or add heat to a certain one. We observed and wrote our observations in our notebook of each scenario to determine which were an example of a chemical or physical change. We divided up each scenario between us and then conducted the experiments. Our claim was that the water/salt and the paraffin wax were physical changes and the copper wire, sodium hydroxide/copper nitrate and the hydrochloric acid/sodium bicarbonate were chemical changes. Evidence: Scenario #1 Water/Salt: The salt dissolved into water, giving it a foggy color. Scenario #2 Copper Wire: We placed it into a crucible and heated it with a Bunsen burner and it changed into a silver color. Scenario #3