what you need: 1)vinegar            2)baking soda            3)12 test tubes          4)rack

                         5)food coloring       6)measuring cups          7)goggles    8)gloves 

           instructions:1)the first step is to mix all colors of the rinbow by adding foodcoloring                           to vinegar we set up two raws of 6 test tubes and filled one raw with

                        vinegar.practice color mixing by adding food coloring to vinegar.

                       2)add acouple of spoon full of baking soda to the other raw of test tubes

                       3)add acouple drops of dish soap to each test tube containing abaking 

                         soda.

                       4)NOW the fun part ,mixing the colors with tubes with baking soda.