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
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?
How do they tell if the pens used for both of these pieces of evidence are the same?
Rainbow paper
Materials;
1.
2. one cup
2. G.paper
3.
4.
5.
6.
Process:
Step 1: Grab a cup, and some G. paper
Step 2: Draw 1 cm on the G. paper
Step 3: Put dots of what colours you want you G. paper to turn into.
Step 4: Put water in the cup
Step 5: Put the G. paper in the cup.
Step 6: WATCH THE MAGIC HAPPEN.. and wait.
Conclusion: What have I learnt from this experiment?
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