We began Chapter 4 with the Flame Test lab.  We reviewed the safety requirements and lab mechanics.  There were stations set up around the room with portable Bunsen burners, chemicals to burn, and equipment to conduct the flame test.  Students recorded their results as described on the Lesson 17 Worksheet.  Students were also offered 10 points of extra credit for taking video of the flame tests and editing them together into a video.  Students also received a print-out of the electron structure of a sodium atom, showing what happens when the outer shell electron of sodium is excited.  The lab took most of the class period, so we will discuss results tomorrow.  Students should complete as much of the Lesson 17 worksheet as possible, read Lesson 17 in the textbook, and answer questions 1 and 2 in the textbook.