Sicence

Hi reader this is what we did in science class today.

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

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:
Step 4:

Conclusion: What have I learnt from this experiment?

I have leant new things I didn't know before