Ice Cream in a Can
		Here is a fun Girl Scout snack recipe from Lauria M. Purpose: To observe charges of state from liquid to solid and solid to liquid Equipment: clean empty soda can - put tape around edge to prevent injury margarine tub or Tupperware container plastic sandwich bag measuring spoon measuring cup plastic spoon Ingredients: crushed ice 1 cup rock salt 1 tsp. Sugar 1 Tbsp. Sweetened, condensed milk ½ cup milk 1 tsp. of flavoring or ¼ tsp. of extract Procedure: Put a thin layer of salt in your container. Place can ( open end up ) on top of the salt, in the middle of the container. Place the plastic bag over the opening of the can so salt and ice doesn't get in it. Alternate layers of ice and salt around the can until the container is full. Remove plastic bag. Put milk, sugar, condensed milk, and flavoring or extract into can. Stir mixture with spoon, scraping sides and bottom of can often. Stir until mixture becomes thick ( about 20 - 25 minutes ). Observation: What happens to the liquid mixture inside the can? What happens to the ice, but not the salt, in the container?