give two activities for particle of matter have space between them
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(a) (i) Take 2-3 crystals of copper sulphate and dissolve in 100 ml of water.
(ii) Take out approximate 10 ml of this solution and put it into 90 ml of clear water.
(iii) Take out 10 ml of this solution and put it into another 90 ml of clear water.
(iv) Keep diluting for 5-8 times.
Inference : A crystal of copper sulphate contains millions of tiny particles which keeps on dividing into smaller and smaller numbers with each dilution.
(b) Anything which possesses mass and occupies space is called matter.
(i) Solid - strongest, (ii) Gas - weakest.
(c) The shape of each individual sugar or salt crystal remains fixed. Therefore, they are solids.
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