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魔法藥學 調配出具有神奇力量的藥水

3D魔法圖案

白板筆是生活中常見的文具,但你知道白板筆也可以拿來進行有趣的實驗嗎?只要在用白板筆畫出的圖案上滴幾滴水,圖案就會好像被賦予生命一般,在玻璃板上游動喔!一起來看看是怎麼辦到的。

我們會需要:

  • 白板筆1支
  • 滴管1支
  • 玻璃片1片
  • 杯子1個

起動手跟著做:

  1. 將乾燥的玻璃片平放於桌面,拿出白板筆在上頭隨意畫出線條或圖案.
  2. 在塑膠杯中裝一些水,以滴管吸取杯中的水後,緩慢滴在玻璃片的線條或圖案上 (必須完全覆蓋整個圖案喔!)。
  3. 最後,用滴管輕輕地從線條的末端挑起來,就可以將線條神奇地從水裡拉出來唷!如果是畫圖案(例如小魚)的小朋友,就可以發現小魚好像從玻璃片上活了起來,悠遊於水中呢~

《闖關成功小秘訣》

  1. 加粗線條和圖案的輪廓,會更容易讓圖案或線條「活」過來喔!
  2. 2. 畫好圖案在倒水時,建議以滴管滴水的方式慢慢加水,直接倒水可能會破壞圖案喔!

你有所不知:

白板筆含有一個重要成分叫做脫模劑,類似保護膜的概念。當白板筆書寫在板子上時,脫模劑可避免筆跡與板子之間過於緊密結合,以便擦拭時容易清除筆跡。實驗中在圖案上加了水後,水分子會充分滲透到筆跡與玻璃片之間,由於玻璃材質本身與水的結構產生靠近,使得圖案能完整地脫離玻璃並浮起來。

*資料來源自: 科思創科教顧問 許良榮教授 NTCU科學遊戲實驗室

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