Final answer:
The distance changes as you travel to other parts of the solar system.
Step-by-step explanation:
In terms of measurement, the distance changes as you travel to other parts of the solar system. Distances within the solar system are determined by timing how long it takes radar signals to travel from Earth to the surface of a planet or other celestial bodies and then return.
For example, to determine the distance from the Sun to Saturn, which is approximately 1.4 billion kilometers, scientists use a scale model as a visualization tool. In this scale model, 1.4 billion kilometers would be represented by a certain distance, such as centimeters, in the model.
Therefore, the measurement that changes as you travel to other parts of the solar system is the distance.