Why does your tongue stick to ice?

It's usually a pretty unpleasant experience when it happens. Sometimes, our tongues stick to things that are really cold, like ice! The reason this happens is because the ice itself is very cold--so cold that it actually freezes the moisture on our tongues. The moisture on our tongues then becomes ice itself, and our tongues get stuck with it. Luckily with ice, our tongues and mouths will usually start to melt the ice and soon our tongues will get unstuck. Besides ice, our tongues can stick to other really cold things, like certain metals. It's not as easy to pull your tongue off a really cold piece of metal though. It actually hurts and can be dangerous, so always avoid trying to stick your tongue to things on purpose.