Nathan learned what keeps you warm in the cold . he took three cup and pour warm water into the three cup and put the lids on them . He then wrap one in cotton and one in foil and place rubber bands on them and left the third cup uncovered . He then put them in the fridge and lift them in the fridge for ten minutes after that he took them out and test with his finger to see which one was cold and which one was hot and found that the cup that was wrap with cotton was hot . Nathan love Science.
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