Changes in which only _________ properties of a substance change are called physical changes.

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Solution

Changes in which only physical properties of a substance change are called physical changes.
Physical properties of substances:
Physical states (solid, liquid and gas)
Density ( mass/volume)
Boiling point, melting point
Change of shape
Texture( hardness or softness)
Physical change
A substance is said to undergo a physical change when only the physical properties such as the shape, size, colour, state or appearance of the substance change. Its chemical composition remains intact.
Examples of physical change:
Dissolving sugar in water
Melting of wax
Beating aluminium to make aluminium foil
Therefore, Changes in which only physical properties of a substance change are called physical changes.

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