Science Experiment: Sweet Sedimentary Rock

Sweet Sedimentary Rock

Learn about sedimentary rock and the different layers of rock. Cave of the Mounds is within limestone rock. In one room we have an upside-down staircase feature that is a great way to show the layers of rock. However, sometimes you need more than just a visual. Rather you need to make a sedimentary rock with its layers of sediment, called strata, that have compacted together. In this activity, we will do just that! Make a delicious sedimentary rock.

You will need: 1 box of vanilla instant pudding, ½ small container of whipped topping, 1 ½ cups milk, 7oz sweetened condensed milk, ⅓ box of graham crackers, ½ can chocolate frosting, Clear container (like a take-out salad container or glass baking dish), Stirring spoon, Knife (for spreading), 1 large mixing bowl, 1 medium mixing bowl, 1 paper plate per person, 1 spoon or fork per person, Access to a refrigerator

  1. Mix milk and pudding together in a large bowl.
  2. Add the sweetened condensed milk. Fold in the whipped topping. Mix all the ingredients well.
  3.  Divide the pudding mixture in half; leave half in a large bowl and put the other half in a medium bowl. Color each half with a different food coloring. Set aside.
  4.  Cover the bottom of the clear container with whole graham crackers.
  5.  Cover the  graham cracker layer with the pudding mixture from one of the bowls and spread evenly.
  6.  Place another whole layer of graham crackers on top of the pudding layer. 
  7.  Spread the other pudding mixture on top of the graham crackers and add one final layer of graham crackers.
  8. Spread the chocolate icing on the top layer of graham crackers.
  9. Refrigerate for at least one hour.