This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for making fingerprints visible with iodine. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
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How To:
Make This Amazing 9-Layer Density Tower from Things Found in Your Kitchen
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How To:
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Build a Simple Paper Bridge as a Science Experiment
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