Minimal Pairs /s/ and /θ/
sing and thing
Below are lists of words that vary only by one having the sound /s/ and the other the sound /θ/. You can use this to practise the sounds or as a list of words to be careful to pronounce properly.
This page uses the symbols of the Phonemic Chart. You can listen to the symbols here.
At least while you are making a conscious effort to do so, it is fairly easy to pronounce these two sounds differently. /θ/ is pronounced with your tongue between your teeth or even sticking out of your mouth, and you can make sure you pronounce it clearly by putting your finger vertically in front of your lips and checking that it gets wet when you make this sound. /s/ is pronounced with the tongue well inside your mouth and the mouth much more widely stretched.