How do I separate a mixture of gravel and raisins w/o using mechanical means?

Science & Mathematics by Anonymous 2018-09-18 09:31:17

Social Science

How do I separate a mixture of gravel and raisins w/o using mechanical means?

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Without sorting the mixture by hand or other mechanical means, describe a method to separate a mixture of raisins and pea-gravel (small rocks with the same coloring and size as the raisins). I thought of adding water to separate the mixture, but then it came to my realization that both gravel and raisins sink in...