又再玩多個小實驗，但有點失敗，哈哈！！時間太長，因為中間個杯的水太多，個流程太慢。廚房紙巾應該先濕水，可能會快些。最後，就是吱吱和嘩嘩的手勢不同，應該一個落得多咗色素，所以中間個杯不是「紫色」。噢⋯⋯
The water moves up the paper towels through a process called capillary action. The paper towel is made from fibers and the water is able to travel through the gaps in the fibers. The gaps in the paper towel act like capillary tubes and pull the water upward. This is what helps water climb from a plant’s roots to the leaves at the top of the plant or tree.
The water is able to move upward against gravity because of the attractive forces between the water and the fibers in the paper towel.
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