Chemistry 12:  Practice Test due Tuesday.  Acid Base test on the Double block next week.

Chemistry 11:  WS:  Concentration of Ions.  We added a few notes to the Lab 12B molecule sketches today, and learned how to id symmetrical and asymmetrical molecules.

Science 9 (P56):  Read 11.3 and make brief notes on ways to make electricity.  Consider the pros, cons and environmental effects of each type.  Be ready to declare your favourite type.  Electricity Test  next Friday.