You’ve seen some of the many forms of energy, one of which is heat. Remember that heat is the transfer of kinetic energy, or motion, of particles. As heat energy is added to a substance, the particles begin to move faster and faster. But what is the difference between heat, or “thermal energy” and temperature? Watch this short video to find out.
Source: Bill Nye The Science Guy on Heat | Bill Nye | YouTube
The mountains are icy but they’ve got motion of molecules. See even cold things have heat. Things light snow and icy mountain lakes and glaciers; they've got heat. Anything with molecules has heat. Its just that the molecules in cold things are moving more slowly than the molecules in warm things. You with me?
Here’s a question: Which has more heat energy: this hot burning match, or this beautiful ice sculpture of Science? The match is hot right? The sculpture is cold. Well they're both made of molecules right? Which has more molecules: the ice sculpture. A LOT more molecules. So although they're much colder than the match, they actually have more heat energy. More molecules, more heat energy. Think of it this way: Supposed you tried to take a burning match and use it to melt the ice sculpture. That’s not gonna happen right? I mean the match is gonna run out of molecules long before the sculpture so more molecules, more heat energy!