Why is water used in hot water bags? + more AumSum Videos |

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Timecodes :
0:00​ - Why does a turmeric stain turn red?
1:34​ - Why is the upper surface of a leaf more green and shiny than the lower surface?
3:15​ - Why do we see lightning before thunder?
4:27​ - Why do we use a black umbrella in summer?
5:31​ - Why are cloudy nights warmer than clear nights?
6:43​ - Why is curd not stored in copper containers?
7:58​ - Why is a laboratory thermometer not used to check body temperature?
9:12​ - Why does a Touch Me Not plant close?
10:31 - Why is water used in hot water bags?