大科学家爱因斯坦曾说:“科学就是探秘,探秘就是乐趣”。所以,探索与操作”既能满足孩子动手和交往的需要,又因充满新奇和刺激而深受孩子们青睐。 科学小实验不仅能培养孩子动手动脑的能力,加深对生活息息相关事物的理解,还能知道一些基本的科学原理和运行规律。所以请让我们的孩子张开双手,去探索未知的世界吧!
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活动思考:把一根筷子插入装着米的杯子中,然后将筷子上提,筷子会把米和杯子提起吗?
实验材料:塑料杯一个、米一杯、竹筷子一根
实验操作:
1、将米倒满塑料杯。
2、用手将杯子里的米按一按。
3、用手按住米,从手指缝间插入筷子。
4、用手轻轻提起筷子,杯子和米一起被提起来了。
实验原理:
由于杯内米粒之间的挤压,使杯内的空气被挤出来,杯子外面的压力大于杯内的压力,使筷子和米粒之间紧紧地结合在一起所以筷子就能将成米的杯子提起来。
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三年级一班
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三年级二班
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三年级三班
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三年级四班
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三年级五班
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三年级六班
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三年级七班
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三年级八班
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三年级九班
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三年级十班
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三年级十一班
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三年级十二班
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三年级十三班
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三年级十四班
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三年级十五班
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三年级十六班
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在动手动脑的探究活动中形成积极的科学态度,提升探究能力,获得丰富的科学知识,感受自然的神奇和科学的厚重,我们的生活和学习会更精彩!
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编辑:李寒
审核:张保印 侯茹
图片:各班班主任