Usually it means that something has gone through a physical change and any chemical properties of that substance are not altered.
No, filtering something is not a chemical change.
If you burn something it is a chemical change, however if you melt of boil it, it is a physical change.
Chemical change
lighting is a chemical change
No. It is a chemical change. By the way, burning something is a chemical change only.
Something that burns or is flammable would be a chemical change.
A physical change is one where just the appearance of something changes and a chemical change is where the genetic makeup of something changes.
If something's reacting, it's a chemical change.
When something reacts, that is a chemical reaction. Chemical change.
Stating that something is flammable is stating a chemical property. But the actual burning would be a chemical change.
When you mix something with something else
When you mix something with something else