Cake chemistry explaining how to do a at home experiment, They give all the ingredients needed and begin to explain what they will be doing.  The start to give step by step instructions on how to mix the ingredients together.  They give very detailed information about what to do before putting them in the oven.  Once, they come out of the oven they explain the difference between all of the cakes and the different ingredients they did not put in each to see why the results were different.