Aim: To separate colours by using the process of chromatography.

Definition: Chromatography is a method of separating out materials from a mixture.

Eg. blood, ink, drugs,

Scenario

A crime has been committed. The police have a signed cheque and a letter from the same crime scene but it seems like the handwriting is different. They have 3 suspects but not enough evidence. They need to know if the letter and the cheque were written by the same person.

How do they tell if the pens used for both of these pieces of evidence are the same?

Rainbow paper

Materials;

1. cup 

2. water 

3. felt tip pens

4. chromatography

Process:

Step 1: copy and past Mr. Palmer's blog.
Step 2: Get a cup, chromatography paper and two felt tip pens

Step 3: Use two felt tip pens draw two dots on the chromatography paper.

Step 4: Put the chromatography paper in the cup then full the water in there.

Step 5: wait for ten minutes for the water soaked the chromatography paper, then when the water soaked the chromatography paper will change color. 

Conclusion: What have I learned from this experiment?

Chromatography paper was a magic paper because if you draw a dot on then get a cup and put some hot water in the cup then put the chromatography paper I there then wait ten minutes the chromatography paper will change color and chromatography also called rainbow paper. but you just can put hot water in, but if you put water in that is not going to work