10/5/09 first samples phosphate amount

Phosphate Amount

To test the amount of phosphate present in each water sample I dipped the tip of a little stick of paper into the water which was pink on the tip and waited for 3 minutes until it changed colour, if it changed colour. I then compared the colour of the tip of the stick with the scale on the bottle to determine the amount of phosphate present for each sample.
Sample spot 3 contained the most phosphate in the water.