111五上康軒第三四單元25選擇題
Quiz
•
Education
•
1st - 5th Grade
•
Practice Problem
•
Medium
Lin I-Cheng
Used 1+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一組水溶液滴在藍色石蕊試紙上,都不會讓藍色石蕊試紙變色?
食鹽水、醋
石灰水、食鹽水
醋、汽水
汽水、糖水
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將等量的酸性水溶液和鹼性水溶液混合後,如果混合水溶液仍然呈酸性,那麼該怎麼做才能使水溶液變成中性?
再加入中性水溶液
再慢慢滴入鹼性水溶液
拿去加熱
加入酸性水溶液
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種物品連接上通電的電路後,不能形成通路?
食鹽水
迴紋針
鋁線
竹籤
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列關於自製酸鹼指示劑的注意事項,哪一項敘述是正確的?
一定要選擇新鮮的水果當材料
不能用紫色以外的植物當材料
植物的汁液要先經過冷藏才能使用
最好選用顏色較深的植物,效果較佳
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各種生活實例中,何者可說明「物質溶解」現象?
煮湯時,在湯中加入少許食鹽
用拖把將地上的水漬拖乾
將洗好的衣服吊在衣架上晾乾
將巧克力以隔水加熱方式製作巧克力鍋
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
進行100公尺的短跑比賽時,怎樣比較快慢才正確?
規定跑的時間要一樣
要同時、同地出發,看誰先到終點
計算每個人所跑的步數
同時計時,但每個人出發的時間不一樣
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種水溶液無法只用眼睛看和鼻子聞就能直接辨識?
食鹽水溶液
醋
可樂
咖啡
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