We receive our water testing kit provided by teacher and collected water sample from our science rep. First, we observe and smell the water sample to see if there is debris in it and have a rough indication of pollution source. Secondly, we observe its colour, it is greenish-yellow which means that algae is suspended in water. Next, we pour the water into a bottle with the turbidity disc on the bottom of it. The turbidity disc shows '3' as the faintest number which indicates that the level of turbidity in the water is normal. Next, the temperature of the water is tested by placing a strip of temperature detecter and see which number turns green. As for the amount of dissolved oxygen, we put in 2 pills into the test tube and shake to see what colour it turns. Finally, we throw in one pill and shake the test tube to find out the pH through the colour the water turns to.
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