Entering the CHEMICAL world! Now that we have spent several days looking at the Physical side of matter... we will spend some time with the Chemical side. Chemical properties and changes are those that can only be seen while a substance is in the process of changing into something else. Today we are doing a bunch of "mini experiments" and deciding if we are observing Physical or Chemical changes. It is not so easy to tell. What exactly IS happening when we burn a candle???? Ask us when we get home, we know!