What is the reaction rate for each color dye? Add ½ a cup of water to each of the glasses and label them (control, red, yellow, green, and blue) 2. Add 2 drops of red food coloring to the glass labeled “red.” 3. Add 2 drops of yellow food coloring to the glass labeled “yellow.” 4. Add 2 drops of green food coloring to the glass labeled “green.” 5. Add 2 drops of blue food coloring to the glass labeled “blue.” 6. Add 10 drops of bleach to each glass, including the control. 7. Use a data table to record observations at times: 0 min, 3 min, 20 min, and 50 min.