Change in Color.
A temperature change can be seen both in physical and chemical changes.
You think probable to phenolphthalein used as a pH indicator.
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.
This is a physical process.
It is a physical process. Not really a change of any kind.
It is a physical state change from a solid to a liquid. It is not a chemical change, unless other ingredients are then added when melted - as usually happens when used in cooking, for instance.
state
A plate dropping and shattering is a physical change. It is not a chemical change, as the material used in making the plate doesn't change.
Weathering is the term used to describe the reduction in the size of a rock by chemical or physical means.
Reaction is more often used for chemical change, but it is also used in the physics law, "For every action there is an equal and opposite reaction."
Classify it as chemical, the heat is used mainly to speed up the reaction.
Fading paper is a physical, or mechanical, change. It is such because it does not involve any chemical solutions that a chemical change would require. Fading paper represents a physical alteration in the material similar to cracking, scratching, crushing, abrasion, and other means of disintegration.