Let's play spies and learn chemistry in the process! Lemon juice invisible ink is a cool chemistry project that you can do at home. You just need to squeeze a lemon and write your secret message using juice as ink with a brush or a cotton bud. After your ink has dried on the paper, no one will be able to read the message unless they heat the paper. #TheDadLab #scienceexperiment #dadlife #scienceiscool #chemistry | TheDadLab
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Let's play spies and learn chemistry in the process! Lemon juice invisible ink is a cool chemistry project that you can do at home. You just need to squeeze a lemon and write your secret message using juice as ink with a brush or a cotton bud. After your ink has dried on the paper, no one will be able to read the message unless they heat the paper. #TheDadLab #scienceexperiment #dadlife #scienceiscool #chemistry | TheDadLab
191K viewsJul 1, 2021
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Invisible ink recipe - The National Archives
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