Science 9:  Class began by going through the answers to pg 309 # 1-5 and 7-12.  Scientific Notation #2 provided a a little more practice on Scientific Notation, then we did the Voltage in Series and Parallel lab.  In the second half we read section 10.3 and did pg 314 # 1-12, in sentences where appropriate.  Our final task was to learn the meaning of Resistance and to measure the resistance o of several devices (D cell, open switch, closed switch, etc) and materials (wood, stone, metal, humans, etc).

Wednesday, December 4, 2019

Science 9:  Class began by going through the answers to pg 309 # 1-5 and 7-12.  Scientific Notation #2 provided a a little more practice on Scientific Notation, then we did the Voltage in Series and Parallel lab.  In the second half we read section 10.3 and did pg 314 # 1-12, half in sentences and half in point form.  Our final task was to learn the meaning of Resistance and to measure the resistance of several devices (D cell, open switch, closed switch, etc) and materials (wood, stone, metal, humans, etc).

Chemistry 12:  After a short review we drew the graph prescribed by Lab 20H Part I, followed by a green review of Ka and Kb Calculations.  A short set of notes on Titration Curves followed.  We read Section 4.18 and did # 125.  You are not expected to work with pH1/2.# Due on Friday is the Ka and Kb Calcuations WS and #125.  Your Lab 20G should be done and in my lab book drawer in room 313.  Test next Thrusday on Unit 4