In this lesson I learned that during a chemical change that some signs of  reactions are bubbling, fizzing, and, color change. I also learned that that table salt has clorine in it. I thought that he was kidding because if you swallow clorine in a pool it burns your throat and its not good for you. Lastly, i learned that elements are the simplest form of matter and that everything in the world is made up of one or more elements. Now for a question what was your favorite lab and what one was your least favorite in this lesson.