
五下U.2是非題
Authored by Kenny Hsieh
Science
5th Grade
Used 11+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
可以利用酒精燈加熱食鹽水溶液來蒸發水分,取回溶解在水中的食鹽。
正確
錯誤
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當紫色高麗菜汁滴入石灰水時,紫色高麗菜汁會維持紫色系。
正確
錯誤
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
糖水會使藍色與紅色石蕊試紙都不變色,所以糖水是中性水溶液。
正確
錯誤
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
手不小心沾到強鹼水溶液時,要立刻用酸性水溶液沖洗。
正確
錯誤
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
胃酸過多時,可以吃胃乳片減緩症狀,這是酸和鹼互相作用的例子。
正確
錯誤
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
肥皂、食鹽和小蘇打粉溶解於水中所形成的水溶液,都很容易導電。
正確
錯誤
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大雄家的熱水壼產生水垢,他可以加入小蘇打粉將水垢溶解清除。
正確
錯誤
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