Chemistry 12:  We reviewed finding pH given a strong acid, strong base, weak acid, and weak base.  Next was the Hydrolysis mini review WS.  After making a buffer (.20 M sodium carbonate with .20M sodium bicarbonate), we wrote brief notes then read 4.19.  We began U4 # 131 - 134, 136, 139, but this is not due yet.  Test on Unit 4 on Friday, so a little review each day will be helpful.

Chemistry 11:  On Lab 12B we wrote the geometry names and the bond angles to highlight common molecular structures:  tetrahedral, trigonal planar, linear, and trigonal pyramidal.  We then completed the Dead Sea lab, where everyone found the [NaCl] in a saturated salt solution.  This is due Tuesday.

Science 8:  We started with a review of continents, oceans, and large islands. We took brief notes on Seismology after talking about earthquake safety and viewing a number of short clips (one about Kobe, one about swimming pools, and one about seismographs).  With a partner, we practiced travelling like P and S waves, with the distance between the waves growing ever larger as the waves travel further.  We read section 11.3 from the old Probe 9, and we practiced drawing circles with compasses.