It's water vapour. Because the cold air and the moisture from the exhale meet, the cold air can't hold the moisture, so you see the mist, which is actually water droplets.
Ear : Hear : Mouth : Speak Snow: cold : sun : hot
Soak in hot water soften slightly. as it cools place (carefully) in the mouth and press into place biting down as you do so to imprint. Place immediately in cold water
Warm air rises over cold air when a warm and cold front connect.
Well this happens due to the heat from your breath.
it is known as a stationary front
There was no "front" in the Cold War.
warmer than a cold front and colder than a cold front
A stationary front
yes. i have it in my mouth as we speak.
It is essentially a cold sore on the mouth area.
i have no idea ocean
It sometimes means that you are either hungry or thirsty. But it's normal considering that your mouth is sometimes open in a cold room or outside that it causes the air to go into your mouth and makes your mouth and tongue cold.