chalk, iron, Wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that materials are different.


Chalk:


i. Chalk cannot be bent and compressed.


ii. It is rough on the surface.


iii. It is not lustrous and appears dull.


Iron:


i. Iron is a hard material.


ii. It cannot be bent, compressed and scratched.


iii. Its appearance is shiny.


Wood:


i. Wood is a hard material.


ii. It cannot be bent and compressed.


iii. Its appearance is dull


Aluminium:


i. Aluminium is a hard material.


ii. It cannot be bent and compressed.


iii. Its appearance is shiny.


Candle:


i. Candle is a soft material.


ii. It can be bent, compressed and scratched easily.


iii. Its appearance is dull.


Cotton:


i. Candle is a very soft material.


ii. It can be bent, compressed and scratched easily.


iii. Its appearance is dull.


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