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Litmus

usgb/ˈlɪtməs/Volume
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Chemical Indicator

Litmus is specifically used in chemistry to indicate acidity or alkalinity, not general color change.

Illustration for Chemical Indicator
My teacher said that litmus is not a dye but an indicator.
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Blue and Red

Remember, litmus turns only blue in alkaline conditions and red in acidic conditions, not other colors.

Illustration for Blue and Red
Her litmus paper turned red when she tested vinegar.
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Testing Substance

Litmus is not the substance being tested; it's the tool to test other substances.

Illustration for Testing Substance
He realized he needed to get litmus to test his pool's water.
Visual representation of the word "Litmus"

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