Chromatography

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. chromatography paper

2. felt pens

3. cup

4. water

Process:

Step 1:poring 

Step 2:bloging

Step 3:watching

Step 4:helping 

Step 5:geting

Step 6:coloring

Conclusion: What have I learnt from this experiment?
when you put colour in the water it changes colour and that was really fascinating. we learnt how  do it and the colour were turning some neon stuffs, the colours were spreading all over the place and the water went at the top of the paper.

Skittles

Aim: To separate colours from skittles by using the chromatography.

Materials;

1.  water 
2.  skittles
3.  container

Process:

Step 1: the skittles colour spread all over the container.
Step 2: when Mr. Tish put water on it the colours were starting to spread out. 
Step 3: we were aloud to eat the skittle when Mr. Tish said.
Step 4: when we mix the colour it turn into orange.

Conclusion: What have I learnt from this experiment?
what i learnt from this experiment is that while pouring some water in the container with the skittles the skittles were starting to spread out because of the water. i learnt how the colours were spreading out and the skittles were turning white.