Kelvin Scale
Imagine trying to get the last bit of toothpaste out of a nearly empty tube. Just like there's a point where no more toothpaste can be squeezed out, in the Kelvin scale, there's a point called absolute zero where no more energy can be removed from matter. The struggle to extract the very last drop of toothpaste mirrors the concept of reaching absolute zero, where just as no more toothpaste can be squeezed out, no more thermal energy can be extracted from a substance.
Practice Version
Kelvin Scale: The SI temperature scale. At zero kelvin, no more energy can be removed from matter. Kelvin scale. The Kelvin scale is a scientific temperature scale where absolute zero, the point at which no heat energy remains in a substance, is zero.