Chemistry 12:  We did Lab 20B today.  We also learned about Ka and Kb, read 4.7, 4.8 and 4.9, and Unit 4 # 31-39 and 41 are due for Friday.  Lab 20B is due on Thursday, November 21st.

Science 9 P12:  We wrote a few notes on the 4 Families of the Periodic Table that we observed from Tuesday and we debriefed the static electricity lab as well.  After seeing a Cathode Ray Tube in action, we read section 7.1 and did pg 208 # 5-7, 10,12,13 and pg 200 # 2-5, 9, 10 in sentences where appropriate.  We constructed a mini periodic table and drew Bohr diagrams for the first 20 elements.  The last half hour was spent making measurements that enable us to calculate density.  Due Friday are all the textbook questions and the table of Bohr Diagrams.  Your Book Article was due Tuesday, so please finish this asap if it is not done.