在学期一堂作文课上,我们班做了一个有趣的“气球实验”。作文课开始了,田老师从一个大包裹里拿出一串又一串的气球,对我们神秘地笑着说:“今天,我们要用气球做一个实验,把它放在头发上摩擦,看看能不能让它吸在黑板上。”顿时,教室里炸开了锅,同学们纷纷拿起了气球,放在头上开始疯狂地摩擦。我想:“这不就是利用静电嘛?静电这么小的吸力,顶多能吸起纸片,能吸起气球吗?”但我还是将信将疑地摩擦起来。看周围,同学们擦得可卖力了。有的用 During the semester a composition class, our class made a funny “balloon experiment”. Composition class began, Mr. Tian took out a string of balloons in a large package, a mysterious smile to us and said: “Today, we want to use the balloon to do an experiment, put it on the hair friction, See if you can get it to the blackboard. ”Suddenly, the classroom exploded pot, the students have picked up the balloon, on his head began to friction crazy. I think: “This is not the use of static Well static electricity so little suction, at most to suck the paper, can suck the balloon? ” But I still doubt the friction. Look around, students rub hard to work hard. Some use