How does the surface area to volume ratio of an object change as its size increases?
the surface area to volume ratio decreases as something gets bigger. To calculate suface area to volume ratio: surface area divided by volume. The concept here is that a big box, for example, has only six sides for something to react with it. If it is split into smaller boxes it has more sides for something to react with it. Take a box 4 by 4. It has six sides. Now split it into four. It will now have 24 four sides for something to react with (there are still six sides for each smaller box). Just think of a reaction. If you put large granules of limestone into acid it is a slow reaction. Now if you put POWDERED limestone into the acid the whole thing fizzes up pretty quick. The powdered limestone has more sides for the acid to contact. Thats because there is a larger surface area to volume ratio with the powdered limestone – in essence there are more surfaces. You can also talk about this in terms why we have lots of small cells rather than big cells in our body. If we had big red bloo
