Measure of abiotic factors of the aquarium
pH-value
material:
cold water aquarium, measuring tool which is divided into 3 parts, a pillar to fill something in and to the right and left one pillar with colours to compare
experiment set-up:
First we fill some of the aquarium water into the pillar in the middle, and then we add an indicator. Shake the measuring tool a little bit to mix up the water and the indicator, so that the indicator dissolves in the water. Wait some seconds for a colour to compare it with the pillars besides.
Result:
We’ve got a pH-value of 8,5
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