関連ワード:
tearing of paper is a physical or chemical change burning of paper is a physical or chemical change tearing a piece of paper is a physical or chemical change ripping paper is a physical or chemical change burning of paper and wood is a physical or chemical change burning a piece of paper is a physical or chemical change burning of paper and board is a physical or chemical change tearing a sheet of paper physical or chemical change tearing up paper physical or chemical change burning of paper is an example of physical or chemical change
