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The food colouring will gradually spread through the water because of diffusion.
well somebody has to make it don't they. they get food colouring and water and mix it together. it is pretty easy
Yes, food colouring mixes into water and will become uniform.
no, it is a chemical
They dont 'react'. the plant sucks up the food colouring (like water). this happens all of the time to plants, except you cant see it usually. Anyway, the plant sucks up the colouring, and treats it as water :)
mix it with water
well somebody has to make it don't they. they get food colouring and water and mix it together. it is pretty easy
carbon dioxide
carbon dioxide
Because of the way they make the colouring in the smatie outer coat, there is a ingredient which allows the colouring to leak out in the water and that's what happens also with your tounge.
CO2 - Carbon Dioxide
Yes it does you see that the water changes because the food colouring atoms are less dense than the water atoms which causes to "merge" together.