Explain Why Burning Of Wood And Cutting It Into Small Pieces Are Considered As Two Different Types Of Changes

Explain why burning of wood and cutting it into small pieces are considered as two different types of changes.


When wood is burned it forms a completely new substance, i.e., coal. The properties’ of coal are different from wood. This is a chemical change.
Whereas, when wood is cut no new substance is formed. This is a physical change.