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Friday, April 9, 2021

Acid Rain Experiment

 Acid Rain

What is Acid Rain?

Acid rain is the rainfall turning acidic due to the pollution in the atmosphere. Acid rain comes from factories that burn fossil fuel and is released into the air which cause it to dissolve into the rain to form Acid rain.

Aim of the Experiment: To observe effects of Acid Rain.

Equipment: Petal, Calcium Carbonate, Apple, Universal Indicator, Bromothymol Blue.

Hypothesis: I think that it will dissolve and make acid rain.

Method: In a petri dish place items around edge. Wet dry ingredients with drop of water. In the middle put a weight bodt. Add a spatula of sodium sulfate to weight bodt, and 5 drops of sulfuric acid. Quickly close.

Observation: When the Sulfuric acid and sodium sulfate was added to the petri dish there was a change in colour starting with the indicators, the universal indicator turned red and the Bromothymol blue indicator turned orange/yellow. While the apple lost it's colour.

The reason why the universal indicator turned red was because it was a acid and it is natural that a acid with turn red. The apple lost its colour a bit because the acid was eating away around the skin of the apple. Therefore the flower has lost its red colour and has turned into a pink colour same with the apple.

Before


After







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