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The process is a physical process and the actual change is a physical change.
When warmed, liquid oxygen changes to a gas for delivery to the patient.
How can things change and still be the same
The ozone is present inside the ozone layer. The layer warmed below the ozone is the stratosphere or upper troposphere.
themosphere
If water is warmed up, then that means that its temperature does change.
The sidewalk being warmed by the heat of the sun is a physical change not a chemical change.
built their homes
The state of matter that shows the largest change in volume when warmed or cooled is gas. Liquids and solids increase and decrease in volume in response to temperature change as well, but not to the same magnitude as gases.
This is a physical process.
secured their food
Secured their food
Secured their food
Secured their food
It warmed the houses of the people who bought it.
Secured their food
The process is a physical process and the actual change is a physical change.