Forgery

Today we are learning about forgery, this is what it is. forgery is the way of copying another persons writing or signature. criminals use it for signing cheques falsely.

Aim: to figure out what pen is used to write a forgery letter.
Hypothesis: we will know what pen was used.
Method/Equipment: beaker, filter paper, pen, cello-tape, water.

1. put a dot on the filter paper about 2cm up from the bottom.

2. put 50ml of water in the bottom of the beaker.
3.put the paper in the water and leave it there for 5min.
4.attach a piece of the letter to the paper with sellotape.
5.place the paper in 50ml of water.
6.compare the 2 ink marks.