Question

1. Write your observation when wheat flour is mixed with water

2. What happens when oil is rubbed on to a paper ?

3. What is meant by lustrous and non-lustrous objects? Give examples.

Answer 1

1) when wheat is mixed with water it takes a form of soft solid ,and also can be called amorphous solid but if the amount of water is limited as for the outcome otherwise it will take the form of liquid.

2) oil gets span on the paper , it's gently distributes it's particles on the surface of paper and make it transparent as compared to previous paper . 3) lustrous are those objects of any material which gives the object the ability of shine and non lustrous is it's vice versa .