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This is a cool science experiment. Place a piece of chalk in water, lemon juice and vinegar. Watch r… | Cool science experiments, Science experiments, Fun science
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Dip your chalk in water before using. It will appear lighter at first, but the colors will be more vibr… | Chalkboard art, Chalkboard lettering, Chalkboard designs
Salt and chalk in water - Stock Image - C001/0718 - Science Photo Library
Chalk in water - Stock Image - C036/3868 - Science Photo Library