Really cool question! I am not entirely sure
but I think I got the answer… Think of the blue
food color as a ball and you have a ton of
individual balls that make up your blue food
coloring. Let's compare this to red food coloring
which is made up of balls as well. Now the blue
food coloring balls are much smaller than the red
food coloring balls. They can actually travel
through the white carnation stem much faster than
the clunky red balls. Now this does get a little
complicated as different types of blue coloring
can be different sizes! I think maybe the
standard blue food coloring is a smaller molecule
(ball) than the red!
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