Here's why:
* Short vowel sounds are typically short and quick, like the sound of "i" in "bit" or "a" in "cat."
* The vowel sound in "fire" is similar to the "i" in "bit," which is a short vowel sound.
* It's not a long vowel sound like the "i" in "bike" or "a" in "bake."
Let me know if you have any other questions about vowels!