Chromatography

 Science experiment

Aim: To separate the different pigments in inks or dyes using paper chromatography.

Equipment: Test tubes, Felts, Tube racks, Paper

Method
1.Cut the paper into strips.
2.Put small circles near the bottom of the paper like 2 centimetres up with a felt.
3.Fill the test tube with about a cm of water.
4.Then place the piece of paper in the test tube and hang a bit of the paper off the side.
5. Then finally let the water absorb the felt.

Observation: Well firstly I saw the water run up the paper and absorbed the colour and finally reach two different colour as it was green then went to yellow and blue. This is because blue and yellow make green