No need to buy different colour flowers when you can make them at home. 

Try this experiment with your children and they will love it. 

Things needed:-

4-5 white carnations

Food colour (red, yellow, blue, green)

scissors

4-5 plastic glasses

Instructions:-

- Take plastic glasses and fill 1/2 of them with water.

- Now take food colours and put them in the glasses filled with water.

- Cut half stem of the flowers(if required)

- Put white carnations into the glasses filled with water and colour.

- Observe it for an hour the white carnations will get tinted colour.

- The next day white carnations will be turned into another colour.

Enjoy it with your kids...