which science experiment sounds more interesting?

[CherryBomb]

we have to compare to things.

idea one: take two white carnations, put into seperate vases, in one vase you put yellow food coloring. in the other blue. and see which one turns the carnation to the color the quickest. [only problem is i wouldn't know how to explain how it changed colors]

idea 2: which toothpaste lets your mouth stay the freshness.

 

[RichardB]

I suggest you try to find another idea

of the two the dye idea MIGHT work

you would have to learn about "capillary action" and water flow in the plant stem