Q1 of 65 Page 3

What was the basic classification of element in ancient time? Name them.

In ancient time, the element is classified in the form of five basic elements – the “Panch Tatva” which are air, earth, fire, sky and water


According to ancient people, living or non-living things was made up of these five basic elements.


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2

(i) As the temperature rises, particles move ……………..

(ii) With increase in temperature, the kinetic energy of the particles also ………… .


(iii) The rate of diffusion of liquids is ………… than that of solids.

 3

A piece of chalk can be broken into small particles on hammering, but it is not possible to break a piece of iron in the same fashion. Why?

 4

Find the density of a handful of sand having a mass of 208 g and it displaces a volume of 80 mL of water.

 5

What is fluid?