(a) Collect pieces of different kinds of paper. Find out which of these can be recycled.
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?

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Solution

(a) Pieces of papers collected from newspaper, notebooks, magazines, etc. can be easily recycled. Plastic coated and shiny papers cannot be recycled easily.
(b) When seen through a lens, it can be observed that the surface of the recycled paper is rough whereas the surface of the new sheet of paper is smooth.

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(a) Collect pieces of different kinds of paper. Find out which of these can be recycled.(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?

(a) Collect pieces of different kinds of paper. Find out which of these can be recycled.
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?