Do you know the difference between yams and sweet potatoes? White eggs and brown eggs? How about the difference between whole west and while grain bread?
This useful video from Buzzfeed sets out to highlight the differences between food that look similar to each other.
On top of showing the major difference to help put an end to ingredient confusion the video also explains a bit about the contents of each ingredient, or, in the case of the eggs, the difference in the chickens that lay each kind.
Take a look and give yourself a refresher, you may just learn something interesting.