In Scratch, text are treated as the data type String. A String is use to work with text. Each letter in a string is assigned an index. In Scratch the first letter on a string is assigned an index = 1, the second letter is assigned index = 2, ..so on. Enter the word apple. The cat will tell you the index for each letter. For this case the an index=1, also means that the letter is the at the first position on the word. Index= 2, means the letter is at the second position of the word, and so on.
