Rainbow Colours!!

Well, today we're going to recognise the colour of rainbow. Rainbow is an arch of colours visible in the sky caused by the refraction and dispersion of the sun’s light by water droplets in the atmosphere.

Now, we're going to make rainbow salad. Before that, preprape the following fruits :-

Strawberries / Red colour

Pineapple/ Yellow colour

Blueberries/ Blue colour

Kiwi Fruit/ Green colour

Grapes/ Purple colour

Oranges/ Orange colour

First, wear on an apron. Wash your hands and the fruits. Peel off the skin of oranges, kiwi fruits and pineapples with a knife. Cut the fruits into cubes. Mix all the fruits including the strawberries, blueberries and grapes in the bowl. Put five spoonful of mayonnaise. Stir it with spoon. Now, your rainbow salad. Clean the surrounding before you eat your snack.
Based on the rainbow salad snack, state what the rainbow colours are?