Air power
This morning, I went to the composition class and saw the teacher came to the classroom with a plastic cup, a piece of paper and a spoonful of water. We asked the teacher curiously: "What are you doing? Is it a hand washing or a spring cleaning? "The teacher said mysteriously: "No, let's do an experiment."
The experiment started. The teacher asked: "The empty cup is facing the sky. Cover the cup with paper. Do you say that the paper will fall?" We said, "Teacher, don't underestimate us, such a simple question, even a three-year-old child. I know, of course, it will fall!" The teacher said again: "If the cup is full of water, will it fall down?" Some students said, "Yes!" My classmate said: "No, "Everyone, you say a word, and there are many arguments."
The experiment started. The teacher asked: "The empty cup is facing the sky. Cover the cup with paper. Do you say that the paper will fall?" We said, "Teacher, don't underestimate us, such a simple question, even a three-year-old child. I know, of course, it will fall!" The teacher said again: "If the cup is full of water, will it fall down?" Some students said, "Yes!" My classmate said: "No, "Everyone, you say a word, and there are many arguments."
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