I assume that you are asking for words which mean this, not examples of things which are mutable, mercurial, flighty, inconstant, vacillating, inconsistent or fluid.
when it changes
Change.
We say that it moves.
When it changes position or something to do with the speed.
As people age, the lens hardens and changes shape less easily.
Shape
weathering is when something changes weathering is when something changes
shape and volume
Yes. Chemical changes are irreversible, but physical changes can easily be changed back
shape
Liquid
People
it is something that temporarily changes something
liquid
Gas
Natural changes refer to alterations or transformations that occur in the environment or living organisms without human intervention. These changes can include processes such as weather patterns, geological events, and biological life cycles. They are part of the natural order of the Earth's ecosystem.
Compact or mobile are words that are usually applied to create a phrase of something that can be carried easily.