Museum of Science
Museum of Science and Industry: Online Science: Color Changing Carnations
A popular plant experiment where food coloring is added to the water that flowers sit in, to see how this affects the color of the flowers. It demonstrates how water travels through the xylem of a flower stem.
Science is Fun
Science Is Fun: Candy Chromatography
In this experiment, you learn about chromatography when you separate the dyes in candies like M & M's and Skittles to see how many dyes are in each color.