Station 2:
Stability of a Stratified
Water Column

1)	Fill up tank to first mark with a mixture of boiled water--from the beaker-- and hot tap water.  Make certain to run the tap water for 30 to 60 seconds before using it.

2)	Place clamp on hose connected to plastic ice-water beaker.  Fill beaker 1/2 full of ice, fill with cold tap water, and stir.

3)	Wait--for the TA.

4)	With the tubing positioned at the bottom of the tank, open clamp SLOWLY to allow cold water to fill tank gradually up to the mark.

5)	Stop cold water flow.