4th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    When one atom of oxygen and two atom of hydrogen are combined together, one molecule of water is formed. This type of change is called ________.

    A) Physical change

    B) Chemical change

    C) Biological change

    D) All of these

    E) None of these

    Correct Answer: B

You need to login to perform this action.
You will be redirected in 3 sec spinner