• 60只蚊子寫作文小學生作文初中作文高中作文

    撕紙

    時間:2019-03-26 22:17:57 | 作者:學霸

    那一次,我正專心致志地做著寒假作業,不料在寒假作業上看到一個有趣的題目——撕紙實驗。我心里嘀咕著:撕紙就是小朋友破壞紙嘛,有何實驗的呢?我仔仔細細地看完全文后,不禁被文中的介紹所吸引了,準備和那胖乎乎的爸爸一起來做這個實驗。

    我們一絲不茍地準備了做實驗的材料:一些白凈的A4紙,尖尖的剪刀,爺爺的放大鏡。首先,我把紙對折,用剪刀從對折線裁下,在每半張紙上寫上“橫向,縱向”。當我拿著“橫向”那張紙用力一撕,這張紙就毫不留情地斷開了。這是爸爸語重心長地說:“做事情不能粗心大意,要細心啊!”我拿起另外那半張紙,慢慢地把這片紙撕開了。當我如此反復撕了幾張后,發現橫向撕比較難,縱向撕比較容易。我拿起放大鏡,仔細地觀察橫向撕開的邊,參差不齊;縱向撕開的邊,比較筆直。我想,這應該與撕紙的力度、方向、強度有很大的關系。

    原來撕紙也可以有這么多的學問,真是受益匪淺!今后我要多動手,從實驗中可以獲得更多的知識和樂趣。

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