Volcano in a bottle
Volcano in a bottle
Objective: To observe the ability of liquid substances do not mix, the phenomenon of solubility.
Materials needed: glasses, oil, water
Glass filled with water. Pour oil and a few drops of food coloring. Dye will interact with oil. The child see how oil rises to the surface of water . The phenomenon of solubility does not apply in this situation. The water does not dissolve the oil. The oil and the water can not be homogenized.