Editing Skittle Chromatography (section)

== What to Say ==

Have each kid smell the tubes so that they know that the colors are actually from the skittles. Then have the kids try and explain what they think will happen. Then, after you have prepared the plate and allowed it to start separating, look at a plate that is half done and have the kids speculate on what they think is happening. Explain that the color is more charged than the plate and water holds onto the color tightly and therefore moves up the plate. This phenomenon is called polarity. Then, look at a finished plate, and have the kids speculate on what they see. Explain that the colors of the skittles are made up of many colors. Purple is made up on Blue and Red, Orange is its own color, Red is its own color, green is made up of blue and yellow, and yellow is its own color.