
看見自然EP34:蝶豆花茶測水溶液酸鹼
Interactive Video
•
Science
•
6th Grade
•
Practice Problem
•
Hard
Hui M
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將兩種飲料混合後,為什麼會呈現三種顏色?
冰塊會使飲料變色。
其中一種飲料具有酸鹼指示劑的特性。
兩種飲料都是食用色素。
飲料的溫度差異造成分層。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
影片中藍色飲料的特性是什麼?
遇到冰塊會改變顏色。
遇到酸性或鹼性物質會改變顏色。
是一種單純的食用色素。
混合其他色素會產生新的顏色。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據廣用試紙的測試結果,小蘇打水和檸檬酸水分別屬於哪種酸鹼性?
小蘇打水是酸性,檸檬酸水是鹼性。
小蘇打水是鹼性,檸檬酸水是酸性。
兩者皆為中性。
兩者皆為酸性。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
藍色飲料在不同環境下呈現不同顏色的現象,主要與下列哪項科學原理有關?
物質的密度差異。
酸鹼指示劑的性質。
溫度的變化。
氧化還原反應。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
蝶豆花茶具有什麼特性,使其能用於酸鹼測試?
含有花青素,遇酸鹼會變色
具有特殊香氣,能分辨酸鹼
遇熱會變色,能指示溫度
具有甜味,能中和酸鹼
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當蝶豆花茶遇到酸性環境時,會變成什麼顏色?
藍綠色
紫紅色
黃色
藍色
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當蝶豆花茶遇到鹼性環境時,會變成什麼顏色?
紫紅色
藍色
藍綠色
黃色
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