Chromatography

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

Definition: A technique for separating the different parts of a mixture / solid using liquid.

Rainbow paper

Materials;

1. cup

2. water

3. water based coloured pens

4. chromatography paper

5. ruler

6. pencil

Process:

Step 1: Get a piece of chromatography.

Step 2: Rule 1mm from the bottom of the paper.

Step 3: Rule 2mm at the top then fold the piece of paper on the line of 2mm that you ruled and hang it over the side of the cup so its hanging in the cup.

Step 4: Put small dots on the 1mm line at least one finger space away from each of them.

Step 5: Then pour the water in the cup so its just touching the bottom of the piece of paper.

Step 6: put the folded piece of paper in the cup, make sure the dots are in but just a little bit.

Findings: Write about what happened.
The paper will adsorb the water and go up to the colours and they will spread threw out the piece of paper.

Reflection: What have I learnt from this experiment?
I wasn't here on the day but I recon that if I was here it would of been really fun and existing to learn about.