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. paper 

2. felt pen

3. container

4. water

5. pencil 

6. ruler

Process:

Step 1: First of all we got a piece of filter paper & up the top two cm down we drew a line

Step 2: Next we drew a one cm line at the bottom of the filter paper

Step 3: We then put three dots red, green and black. 

Step 4: At the two cm line up the top we bent the paper back

Step 5: We hook the bent bit up the top to the container

Step 6:we poured a little bit of water in the container and waited 

And this is what happened

 

Findings: Write about what happened. As you can see the water slowly spreed up the paper and the felt pen was spreading through the paper at the same time  

Skittles

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

Materials;

1. Skittles
2. Petrie dish
3. water 

Process:
Step 1: we went up the the teacher 

Step 2: we got a petrie dish from the teacher 

Step 3: we Got five different flavoured skittles
Step 4: we spreed the five skittles out 
Step 5: the teacher poured water in the petrie dish
Step 6: we waited to see the reaction

Findings: Write about what happened.
the colour dissolved after the water was poured in  


Reflection: What have I learnt from this experiment? I learnt what a petrie dish was

What did the colours do? turned the water to a different colour
Did the colours mix together? with some time yes
Why or why not? because other time the water drifters along with the colours