DEAR DEXTER SCHOOL,      

  By Erin 
12/6/01

           I am going to tell you what the mystery powder is, and I am going to tell you some tests we did. First Missy put 6 different cups out.  We tested them with some liquids.  The liquids' names are water, oil, vinegar, PT, PR, iodine, and alcohol.  We tested  them with the powders. Some of them turned black, yellow, and pink. We found out what the mystery powder was in a couple of weeks. The mystery powder is baking soda, corn starch, and salt because of the following reactions. Corn starch turned black with iodine. Baking soda because they both had a chemical reaction with the vinegar.  Salt because it had little cubes.

           The truck was going to the grocery store. Then the truck went the wrong way and the bags of baking soda, corn starch, and the salt must have spilled out. So my classmates and I figured  it out. Now you can play on your playground.       

                                                                                                                                                                                                                                                                                                                                                                 Erin's Click here to go to my web page.

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Missy, my teacher.