Absolute Zero

Absolute zero explained in an easy to understand way:

Imagine trying to clean a cluttered room where every item is perfectly still, and nothing seems to move no matter how much you try to tidy up. Absolute zero is similar to this scenario because it's the point at which atoms and molecules in a substance have minimal kinetic energy and are essentially "frozen" in place. Just as a room can't get any more organized if everything is already immobile and perfectly still, a substance can't get any colder than absolute zero because its particles are at their lowest possible energy state, unable to move or rearrange any further.