who said 'it's elementary my dear watson'
READ THIS FIRST: You may (or may not) be familiar with the stories of Sherlock Holmes and his assistant Dr. Watson written by the author Sir Arthur Conan Doyle. In the stories, Holmes and Watson solved many mysteries. With that in mind, get prepared to solve a mystery of your own. You will need a periodic table (use the one inside the back cover of your Science book), a pen or pencil, and the ability to read words that are made up of chemical symbols.