Describe the production of the s and z sounds a... - SS1 English Orals : Consonant /s/ and /z/ Question

The /s/ and /z/ sounds are both produced by forcing air through a small opening between the tongue and upper teeth. The difference between the two sounds is that the /s/ sound is voiceless, meaning that the vocal cords do not vibrate, while the /z/ sound is voiced, meaning that the vocal cords do vibrate. This creates a buzzing or humming sound for the /z/ sound. Examples of words that begin with the /s/ sound include "snake", "soup", and "smile". Examples of words that begin with the /z/ sound include "zebra", "zipper", and "zoo".