—Linda Saxon Nix, Biloxi, Mississippi Your daughter would weigh a teensy bit more at sea level but not enough (less than a tenth of a pound) for a household scale to measure. The reason for the difference is likely the scales themselves. Ordinary scales, including those in doctors’ offices, differ in their characteristics, and comparing their measurements is useless. Positioning alone is a factor. Just moving a scale from one room to another will give you a different reading. Try it and see.