This educational film explores acid-base indicators and their color changes in response to acidity. It demonstrates how substances like tea, red cabbage, and litmus paper react when acids are added, ...
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Why Is It Called a "Litmus Test"?
A litmus test is an idiom for a challenge. But why? In a 2024 New York Times piece exploring the controversy over married couples in Japan using separate surnames, the Times headline read: "A Litmus ...
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