It's hard to imagine how kids (and parents!) ever survived an hour-long wait at the pediatrician's office or traffic on the freeway without an app for instant pacification. If you've ever wondered ...

This can make learning to spell the words quite tricky! Watch this short video to see some more examples of silent letter words. Vowel sounds are made by the letters 'a', 'e', 'i', 'o' and 'u'.