有没有简单的科技小制作 快点 马上啊 最好半小时之内能做完 要简单的 简单的 材料最好每家都有 快啊

2025-02-24 08:15:50
推荐回答(3个)
回答1:

8、自制蟑螂捕捉盒

取一张220×150(mm)的硬纸板。

捕捉盒最重要的部分为捕捉面。取一张塑料膜,剪成与盒底相同大小,涂上粘合剂铺在盒底上。蟑螂能否被捉,关键在于粘合剂。粘合剂有两个作用:一是将蟑螂引入盒内,二是将其粘牢在捕捉面上。引诱剂的调制:将40%的肉粉、50%的面粉、10%的豆饼混合,总量在20克左右,拌好待用。粘合剂是20克松香与10克菜油混合,加热至胶状后,把引诱剂与粘合剂混合搅拌均匀,即制成了粘合剂。

把调好的上述糊状物均匀地涂在已衬上塑料膜的捕捉面上,再按原先画好的虚线向内折,最后把舌片b插在凹口a内。

由于松香与菜油混合物的不干性,可使诱饵的粘性长达一个星期。将捕捉盒置于蟑螂出没的地方,因为盒内较暗,兼有蟑螂喜欢的诱饵,所以蟑螂会爬进盒内争食诱饵,被粘其上。粘满后,既可将纸盒压扁弃之,又可揭去塑料膜,调换涂有诱饵的塑料膜,使盒子得以再次利用。

若将捕捉盒的尺寸扩大,并将粘合剂的成分稍作调整,加厚涂层便能制成纸制捕鼠器

你速度点就行了- -

回答2:

准备材料:一种弯头吸管、一种稍硬的尖头吸管、一次性透明塑料杯2个、棉花棒、牙签、纱布、透明胶、双面胶……

  制作过程:

  1、准备两个一次性透明塑料杯,剪下两个圆形杯口,做轮子用。

  2、把尖头吸管插入弯头吸管中,使它更坚固。每隔半厘米剪开,但不能剪断。

  3、把剪好的吸管从中间剪开。

  4、把吸管包在圆形杯口上。一根不够可以接上第2根。

  5、把线按顺序嵌进剪口中,绕成车轮钢丝的样子。

  6、用一段吸管做轮子中间的轴心。用同样的方法做两个车轮。

  7、把吸管折成U形,用牙签把它和轮子组合起来。

  8、用吸管的两个弯头组合成自行车的龙头。

  9、把吸管的一端剪成两半,用双面胶固定。这是自行车“钢管”的连接方法。

  10、这是自行车的前轮部分。吸管的中间还可以用牙签插入,使连接更坚固。

  11、用两根吸管搭出自行车的架子,弯头的部位用透明胶粘贴成坐垫。

  12、用牙签连接车身和后轮部分。

  13、用吸管弯成自行车的链罩。并固定在车子上。自行车快做好了。

  14、用一根棉花棒弯成脚蹬,用一小段吸管连接在车身上,使脚蹬可以自由转动。

  15、用一小块纱布,粘在透明胶上,然后折成车篓的样子,用针线固定在自行车上。

回答3:

做一个不倒翁吧!很简单,找一个鸡蛋,在鸡蛋头弄一个小小的洞,让蛋清和蛋黄流出来。之后把空的蛋壳装上沙子(只需装鸡蛋的一半),然后把洞孔用纸封住,即可。注:沙子可以替换小铁珠。

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