関連ワード:
give two examples of both physical and chemical changes give some examples of both physical and chemical changes give two examples of physical and chemical changes give two examples of physical and chemical changes class 7 give two examples where both physical and chemical changes take place simultaneously give two examples of each physical and chemical changes give some examples of physical and chemical changes give example of both physical and chemical change what are 5 examples of both physical and chemical changes give an example of both physical and chemical change class 7
