At the same time, you and your adult partner should put one drop of yellow and one drop of blue food coloring on the surface of the hot ... Lower the open mouth of the bottle into the cup with ...

1. Carefully pour some milk in a dish so it just covers the bottom. 2. Gently add one or two drops of red, blue, and yellow food coloring to the same spot in the center of the milk. 3. Dip a cotton ...