Skittle Colours Experiment

 Aim: 
I want to find out what happens when you mix Skittle colours. 

Method: 

Equipment

• Skittles
• Petri dish
• Warm water
• Beaker
• White background

Instructions: 

1. Get your equipment 
2. Place your petri dish on the white background
3. Put your skittle around the inside edge of the petri dish
4. Carefully pour the water into the middle of the petri dish
5. Observe what happen

Prediction: 

I think the colours of Skittles will come in the middle of the petri dish and will make a cool image. And if you mix it, I think it will turn brown. 

Results: 

When mixed: 

What I had witnessed was the colours of the skittles dissolving slowly when it felt the liquid.

When the colours touched each other they kept still, they did not mix. 

After I stirred the colours starting from the middle, it had turned into a light brown shade. 

Discussion: 

The colours dissolved (when a solid is mixed into a liquid, creating a solution). 

Why did the colours spread? 

Since the Skittles are colour sugar coated, when the warm water was poured onto the plate the colours are diffused (spreads out to a low concentration area - where there is no colour).