On Monday the 30th June 2003, class 6T went down to Brookvale Creek to do Streamwatch. At Streamwatch we check the water and do tests like Salinity, PH, Temperature and Turbidity.

In Salinity we have to check how much salt there is in the creek. In PH we have to check if the water is alkaline and acidic.  We also have to check if the temperature is right for the sort of water they have at the creek. In Turbidity we have to look through a tube and see how clean the water is, we know how clean the water is because we have to look through the tube and there is some lines at the bottom so when we can't see the lines we look at the side of the tube and see what the number is on the side.

By Stella

On the 1st of June 2003, Year 6 went to Brookvale Creek, for the second time this year, to do Streamwatch. Streamwatch is when we use special equipment to test the water in our creeks/rivers to see whether they are healthy or not healthy.

First we gathered our equipment and lunch, and then headed to Brookvale Creek to test the water.

When we arrived, we all split into groups of 6 and worked together to test the water. We tested the temperature, PH, salinity and turbidity. We tested them at two sites, Clearview Place and Pittwater Road. We did 4 tests for each site.

First we visited Clearview Place to test the water in a shaded area, and then we walked to Pittwater Road and tested water in a warmer area.

The results were:

                            Clearview Place (site 1)    Pittwater Road (site 2)

            Salinity:               207                              211

            Temperature:       13                                  15

            Turbidity:            10                                  10   

            P.H:                     7                                    7

When we finished testing both areas, we collected our equipment in a little black box, and headed back to school to have our lunch.

By Adrian

On Monday the 30th of June class 6T went on an excursion to Streamwatch. We arrived at Brookvale Creek by walking and later we would be walking to Warringah Golf Course.

First we started walking over to Brookvale Creek we arrived in about 10 minutes. The first test was salinity the salinity level was at 207. The next test was the temperature the temperature was 13 degrees Celsius. Next was Turbidity the turbidity was at 10. The final test was ph the ph was at 7.

Then we were off for the Brookvale Creek near Warringah Golf Course after it had passed through the factory area & shoppping centre. Once again we did all 4 tests, first we did Salinity the level was at 211. The temperature of the water was 17 degrees Celsius. The turbidity level was at 10. The last test was PH and the level was at 7 which is not too bad.

The day was fun and exciting.