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魔术存钱罐 3D储蓄罐 科学光学实验 diy科技小制作 邢老师

  • EXW Price: Min. order:
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    ¥4.2
    ≥100/set
    ¥3.84
    ≥1000/set
  • 3 set
  • Exchage Rate 1 CNY ≈ 0.1418 USD
  • Weight 1.0 kg/set
  • Stock num 8463 set
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  • Description
 
 
 
 
 

品    名:魔术存钱罐

货    号:KX317

包    装:包装袋

产品尺寸:8*8*8CM

装 箱 数:1000 PCS

箱    规:60*40*55 CM

小故事,真有趣!                                                     
有个叫豆豆的小朋友,特别聪明而且很懂事。他知道爸爸妈妈挣得钱不容易,所以从来不乱花钱。每次妈妈给的零花钱他都放在自己的小存钱罐里。有,学校举行向希望工程捐款的活动,豆豆决定把自己攒下来的零花钱捐给那些需要帮助的人,可是当他到家发现自己存钱罐里的钱不见了。他大哭起来。妈妈赶紧过来笑着说:“傻孩子,你忘了这是个魔术存钱罐,你的钱没有丢,不信你晃晃它,是不是里面有声音?”豆豆点点头。故事讲完了,为什么豆豆的存钱罐看不到里面有钱,却能听到声音?
奥妙:
小朋友们知道魔术存钱罐的神秘之处在哪里吗?
你知道偏光眼睛的秘密吗?
平面镜在生活中有什么应用吗?
光与平面镜有什么关系吗?

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Update time:20240827135358


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