Make-Believe Marble
["1 c. white glue", "1/2 c. water", "plaster of Paris", "tempera paint (liquid)"]
["Put water in a container.", "Sprinkle plaster on water until a thick, creamy mixture forms.", "Add glue to plaster mixture.", "Drip some tempera over the plaster and stir until the mixture looks streaked.", "Pour into a mold and let harden."]
["white glue", "water", "plaster", "tempera"]