Summer Camp 3

Emma and Angela

Today, we did water sampling in Cowichan Bay. We used a measuring cup, an eye dropper and a Refractometer. The purpose of this test was to measure the amount of salt content in Cowichan Bay.The first step was to scoop up water from the surface into the measuring cup. Then, we took a sample of the water in the eye dropper. We put the water on the viewing plate of the refractometer. By doing this, the refractometer shows how much salt content there is in the water. It measures the salt content by parts per thousand.

The above map shows the results of our study. We took twenty samples throughout Cowichan Bay. Our lowest result was 5 parts per thousand. This occurred at the mouth of the Cowichan River. Our highest result was 27 parts per thousand. This occurred off Skinner Point, where there was more tidal flow and it was also protected around a corner from the river flow (Full salinity of ocean water equals 34 parts per 1000). The large red arrow on the map shows the flow of freshwater.

Page Created By:

Emma Lansdowne Age 11 From Victoria B.C.

and

Angela Koymiotaki Age10 From Crete Greece