Water Quality Tests by Rhianna

Yesterday we went to Tomarata Lake on a school trip with class's room4,5 and 6.

When we got there we wated for Rachel Griffth's who is the Wai Care teacher, she showed us how to do the water quality tests yesterday at school.
When she got there we did the tests first like the pH test when you put a dip stick in the lake water to check the ph and alkaline. The ph was 0 in both lakes.Then we did a water clarity test with a big long tube that you look down and you run a magnet down the side and it moves the magnet inside the tube to see how far you can look into the water in the tube, then you can measure how far you can look. Tomarata Lake was clearer than Spectacle Lake.

For the macro invertebrate test Rachel scooped up water and sediment then she put it all in some white trays for us to identify the bugs, Tomarata Lake had more macro invertebrates. When we tested for nitrate and nitrite with a dip stick and both Lakes were good.We tested the temperatures with a thermometer, Tomarata Lake was 15 C and Spectacle Lake was 16C, and checked the dissolved oxygen both lakes got a 9 out of 10 so that was good , and we identified trees.

Then we walked to Spectical Lake and did the same tests again.

and a talk by Craig.

We learned lots and lots of expirements

I liked the water clarity test and the pH test.

So a big thank you to RACHEL!!!!!!!!!!!!!