Science Experiment | How to make Natural Indicators | home made indicators

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  • เผยแพร่เมื่อ 18 ธ.ค. 2024
  • An Indicator is a dye that changes colour when it is put into an acid or an alkali. Blue and Red Litmus Paper are the most common Natural Indicators. Some Indicators can be extracted from Turmeric, Purple Cabbage and China Rose. These all are Natural Indicators.

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