* Gravity and Distance: Gravity is the force that pulls objects towards each other. The strength of gravity depends on the mass of the objects and the distance between them.
* Earth's Center: The Earth's center of mass is where most of its mass is concentrated.
* Higher Altitude, Less Gravity: When you go higher in altitude (like on a mountain), you are farther away from the Earth's center. This means the force of gravity pulling on you is slightly weaker.
While the difference in weight is very small, it is measurable.
