CBSE Class 7: Heat Transfer: Convection Videos | Heat

• .Harry has prepared hot sweet corn soup for himself and he has taken 2 utensils,out of which one is a small bowl
• why in hot water sugar is dissolved
• what is land breeze
• what is medium here.
  
• Water was boiled in a beaker for 10 minutes during the boiling of water the temperature of water measured several times every time the temperature is found to be 100°c. why is it so? even though the water is being boiled continously??
• when a person places the hand over a warm fire heat transfer takes place by the process of
• what is land breeze?  
• If air is a bad conductor of heat, why do we not feel warm without clothes?
• (i) What is difference between conduction and convection?(ii) It is hotter at the same distance over the top of a fire than it is on the side of it. Why?
• Why should air coolers be kept higher up in the room, and not down like the heaters?

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