6

ACT ONE: Event: Chromotography (page 22)

ACT TWO:

There are three things of Kool aid up front. Assuming that none will hurt you, I need two volunteers to "test" them for me. Which is the best.

One has zero sugar, one has half a cup. One has a little over a cup. One has three cups.

ACT THREE Discuss and give examples of solute, solvent, saturation, etc.

ACT FOUR

ACT FIVE

Do questions from the worksheet.

ACT SIX

Go over questions from the worksheet.

__Results, Questions:__ 1. What did you see? What colors were actually in the black ink? 2. Which colors were carried furthest? //(the lighter colors)// Which remained lowest? //(the darker colors)// 3. Which color is the lightest in weight? //(those lightest in color)// The heaviest in weight? //(the darker colors)// 4. What pattern was there to the change? 5. What is happening when the colors move up the paper? //(the molecules of color are being dissolved by the water and carried with the water up the paper)// 6. What causes the colors to separate? //(the different colors have different affinities for clinging to the paper, and those that cling hardest to the cellulose in the paper will stop first, and those that cling the weakest will travel further up the filter paper before stopping)// 7. Predict what might happen with different colors.

Try it again. Do you get the same results?