Compare surface area and volume for common 3D shapes.
The surface-area-to-volume ratio matters in biology, engineering, and cooking — smaller objects have proportionally more surface area, which affects heat loss, reaction speed, and more.
How much surface area an object has relative to its volume.
It affects heat loss, nutrient absorption, and gas exchange rates in organisms.
It decreases, since volume grows faster (cubed) than surface area (squared) as size increases.