Making blueberry pH indicator
The making of blueberry pH indicator. Tested with lemon, soap, sodium bicarbonate, bleach (pH 2.4, 5.5, 8.3, 11.4 respectively)
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The making of blueberry pH indicator. Tested with lemon, soap, sodium bicarbonate, bleach (pH 2.4, 5.5, 8.3, 11.4 respectively)