TA Guide Autumn 98

Overall we followed the winter 98 guide or winter 96 guide--just depends on how you look at it.  New station labels were printed up for four stations--on disk for LAB 5.  

Changes or additional notes.
Station 1 and 2  since the tap water is not very hot, we preheated a 1000ml beaker's worth of water before the students got into lab so that it was boiling by the time they were ready to set up the experiments.  A thermometer broke on rack-station 1--needs to be fixed.  ---The graph board is used to have someone chart out a thermocline so the whole class can see.
Extra equipment--- Hot plate, beaker, gloves for hot beaker
Same thing for station 2

Station 3,  We used ping pong balls, just cause I was rushed and did not have time to figure out the balloons.  The ping pong balls are made, but I doubt the will be in good shape by the time this is done again.  When station three is done the first time it can be left and not dumped.  The halocline will last all day--all three labs.  There is a wire hanger for retrieving the balls between labs.

Station 4,   Same

Station 5, --you use a beaker instead of a tank--about a 1000ml beaker works well.  Fill up to 900ml of water than fill about 25ml of dye.

Station 6,   you will need to make up some new ice cubes, the trays are in the freezer.  The dry ice is in room 112 not 118.  And if you talk to Kathy Newell, she can assure that you will have enough for lab.

A General description of the lab was done first then we got right into the lab. We spent the last 5 minutes going over what a TS diagram is and what Sigma-t is.  The T-S diagram overhead should be in this folder.  Homework was changed just a little from winter 98.  There were no handouts given out.