On a day where her large family was busy, the duchess decides to bake “a lovely light luscious delectable cake”. After refusing the help of the kitchen staff, the duchess adds many items to her cake, including over six times the amount of yeast the recipe called for! The cake begins to rise and rise. Despite the kingdom’s best efforts, no one could figure out how to get the duchess down. The solution comes from the littlest daughter, and it is a tasty one! Some of the activities in this unit are conducting a Yeast and Balloon Experiment, baking a cake, and creating knight shields.