A glass breaking is a physical change because the chemical composition of the glass does not change.
Shattered glass is a physical change because the identity of the glass does not change.
It is a physical change. The resulting fragments of glass are still glass and of the same composition.
Breaking glass is a physical change, as it does not change the chemical composition of the material.
This is a physical change. There is nothing that changes the components of either the diamond or the glass when the diamond is used to scratch glass.
Physical change because the molecules have not changed to form a new substance.
A physical change.
No, this is a physical reaction because no matter has exchanged etc. Instead, the lattice structure of the glass has been broken- which is simply physical. (Not even that sophisticated a physical change, as glass has no lattice structure.)
Yes, melting glass is a physical change. This is because only the physical state of the glass changes from a solid to a liquid, while the chemical composition remains the same.
Purely physical.
It is a physical change because the chemical composition of the glass does not change.
Physical change
Yes, scratching glass is a physical property because it is a change that can be observed without altering the chemical composition of the glass. It is a physical change that affects the appearance and surface structure of the glass.