Question

Suggest two ways of converting a transparent plastic sheet into a translucent sheet?

Answer 1

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● Rubbing the sheet with something rough like Sandpaper.
● Application of some oil, butter or wax on it.

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Answer 2

If you want to make a transparent plastic sheet to be translucent, you have to minimize the light that passing through the sheet. The light that passing through the sheet in an uniform way makes the sheet transparent, so better make the light to scatter away from the sheet.  

You can probably use a sand paper or heating method over the sheet to make it translucent.

The second way is a simple one, use some edible oil over the sheet. You could have probably used edible oil over normal paper to make it transparent. Here the edible oil will work in an opposite way on plastic sheet, it will make the sheet go translucent.