Discuss an activity for each, to prove the following:-
(i) Particles of matter are continuously moving.
(ii) Particles of matter attract each other.
(iii) Gases are more compressible as compared to solids and liquids
(iv) The particles of matter are very small beyond our imagination.
Give explanations for the observations made.
Answers
Answer:1- put an unlit incesnse stick in the corner of your room,try to smeel it siiting far from it.
Now light the incense stick and try now to get the smell
You would observe now that you are able to smell it from a distance
Thus particles get diffused and thus less force of attraction and the are always moving.
2- open a water tap and try breaking the stream with your hand .Were you able to do so? No because particles of matter have a force of attraction between them.
3-gases are easily compressible because of large intracellular spaces between themand thus speed of particles is higher. Tru out filling a syringe.
4-Take 2-3 crystals of KMNO4 and dissolve in 100 ml of water.take out 10ml of this sol and put into 90ml of water.now take out 10ml of this sol again and put into 90ml of water. We observe that as we are doing this again and again,colour of the solution becomes light
This concludes that there must be millions of tiny particles in just a few crystals which are also dividing in to smaller and smaller particles.
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