Experience 1：
实验一：
The name:The flying table tennis
实验名称：会飞的乒乓球
The experiment purpose: To explore the magic of table tennis around us.
实验目的:探索我们身边常见的乒乓球的神奇之处。
Experimental materials: tabletennis,elctrich hair drier,high power hair dryer.
实验材料:乒乓球，吹风机，大功率电吹风机
Experimental methods:
实验方法:
(1) experimental operation:
First, with one hand holding ordinary hair dryer, above the other hand will put the ball in the dryer, use cold or hot air blowing in table tennis.
Secod,start the hair dryer, if table tennis can float in the air, then the hair dryer will continue to tilt to a certain point of view, to see whether the table tennis can float in the air.
Thind, to replace the experimental equipment, the use of high-power electric hair dryer. The two ball is placed on the top of the large power electric hair dryer to observe whether it can float; then it is changed into 3 table tennis balls.
（1）实验操作:
1.用一只手握住普通吹风机，另一只手将球放在吹风机的上方，开动冷风或热风吹动乒乓球。
  2.开动吹风机后，若乒乓球的能漂浮于空中，便将吹风机继续倾斜于一定角度，看乒乓球是否还能漂浮于空中。
  3.更换实验器材使用大功率电吹风机。将两球放于开动大功率电吹风机上方，观察是否能漂浮；再换成3个乒乓球，观察实验现象。
(2) the experimental conclusion:
The hair dryer facing the table tennis blowing, because the balance of the force of the table tennis will not be blown away in the air in the suspension. If the hair dryer tilt angle of more than 45 degrees, table tennis will fall. With the electric hair dryer power increased, can float on the top of the table tennis increased.
(2)实验结论:
吹风机朝上对着乒乓球吹，由于力的平衡作用乒乓球不会被吹走而在悬浮在空中跳动，若将吹风机倾斜角度超过45度，乒乓球将掉落下来。随着电吹风机功率增大，能在其上方漂浮的乒乓球增加。
Experience 2：
实验二：
The name:Rotate the scraps of paper
实验名称：旋转的纸片
The experimental materials: paper,scissors,small sticks,the candle,the cartons.
实验材料：纸片，剪刀，细棍，蜡烛，纸箱
The experiental method: Use candles burning hot air to rise to make paper.
The experimental process: first,cut the round paper into spiral,and then put it on the bambaoo stick, then  insert bamboo stick on the carton,then point a candle at the bottom of the paper,soon we will see the paper begin to spin,flame small turn slowly,we lit the other a piece of paper and produce a large fire,then you will see at the top of the paper rotate faster,put out the candle,stop rotation.
实验方法：利用蜡烛燃烧产生的热空气上升使纸片旋转
实验过程：首先将圆纸片剪成螺旋状，然后放在竹签上，再将竹签插在纸箱上，然后再纸片
的下方点一根蜡烛，很快我们就会看到纸片开始旋转，火焰小转的慢，我们再用一纸片点燃产生更大的火焰，然就会看到上方的纸片旋转加快，熄灭蜡烛，旋转停止。
The experimental conclusion: we can do a lot of interesting small experiments,through the experiment,we will also understand many principles.
实验结论：生活中我们可以做很多有趣的小实验，通过实验，我们也会明白很多原理。
高洋洋
园艺1501
tabletennis怎么读音5120154080

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。