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质量( 2 )

质量( 2 ). 当堂检测: 1 、质量的定义: 2 、 2.5t= kg= g 3 、 200ml= cm 3 = m 3 4 、 1.8L= cm 3 = m 3. 5 、如何调节天平平衡。 6 、如何观察天平是否平衡? 7 、课本 13 页 3 、 4. 想一想:. 1 、如何测量一杯水的质量? 2 、如何测量石灰(有腐蚀性)物 品的质量? 3 、如何测量一粒大米的质量? ★ 4 、如果在测量时物体和砝码放颠倒了怎么办? ★ 5 、如果砝码磨损了怎么办?. 攀登高峰:. 1 、给你一张硬纸板,刻度尺、天平和中国地图,你能不能测出中国的面积。.

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质量( 2 )

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  1. 质量(2)

  2. 当堂检测: 1、质量的定义: 2、2.5t=kg=g 3、200ml=cm3=m3 4、1.8L=cm3=m3

  3. 5、如何调节天平平衡。 6、如何观察天平是否平衡? 7、课本13页3、4

  4. 想一想: 1、如何测量一杯水的质量? 2、如何测量石灰(有腐蚀性)物 品的质量? 3、如何测量一粒大米的质量? ★4、如果在测量时物体和砝码放颠倒了怎么办? ★5、如果砝码磨损了怎么办?

  5. 攀登高峰: 1、给你一张硬纸板,刻度尺、天平和中国地图,你能不能测出中国的面积。 2、你能利用一架天平估测出一堆大米粒的个数吗?

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