This is an easy way to make a water magnifying glass. What you need are :
a piece of cardboard
a clear plastic food
newspaper
water

How to make :

First you need to cut a big hole in a piece of cardboard
Cover it with the clear plastic food wrap
Put it on a picture in a newspaper
Now Let one drop of water fall on the plastic / wrap.
What do you see???
Lots of dots?
Now you also know that newspaper pictures are made of dots. The big question is :
How does the picture get bigger???