Heat is the chapter 4 for class 7, for science subject. Here in heat, heat is feeling created when two or more bodies are rubbed together that's frictional heat or when the temperature of the body or the surrounding increases its called heat.Mostly metals conduct heat, as they have free electrons in their valence shells. The measurement can be done with mercury as its a liquid and a metal too. And with ncert solutions for class 7 science chapter 4 ,we can learn more about Heat.
The key aspects to look upon the subject Heat is :-
Similarities and differences between clinical and laboratory thermometer.
Examples of insulators and conductors.
Different types of breezes and which colour absorbs the most or which reflects the most.
Layers of clothing keeping us warmer than one thick layer why?
Why outer portion of the walls of a house to be painted white?