Turn Milk Into Plastic Many plastics are made from petroleum oil. You can make a similar, simpler plastic using milk and vinegar. You Will Need: milk a saucepan vinegar Directions: Place some creamy milk in a saucepan and heat until simmering. Slowly stir in a few teaspoons of vinegar. Keep stirring until it becomes rubbery. Let it cool and then wash it under running water. You now have your own plastic, made from the acid reacting with the organic milk chemicals!

Bibliography Parker, S. Simple Chemistry (London: Kingfisher, 1990).