下列關於植物花朵的敘述,哪一項是正確的?

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Quiz
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Science
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3rd Grade
•
Medium
廖啟富 廖啟富
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(1)雌蕊是花朵最鮮艷的部位
(2)每一種植物都會開花,而且都是在春天開花
(3)雄蕊的數量比雌蕊多
(4)花的香味是從花萼散發出來的
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列那個不是植物在生活中的用途 (
(1)竹子的莖可以做成竹橋
(2)大樹的莖可以做成家具
(3)可以美化環境和淨化空氣
(4)棉花的果實常常拿來當作食物
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一個實驗無法比較出磁鐵的磁力大小?
(1)看哪一個能吸引最重的鐵球
(2)看哪一個能吸引最多的鋁罐
(3)看哪一個能吸引最遠的迴紋針
(4)看哪一個能吸引最多的鐵釘
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於磁鐵的敘述,哪一項是錯誤的?
(1)有N極和S極
(2) N極和S極磁力一樣強
(3)同極相吸,不同極相斥
(4)磁鐵的磁極是磁力最強的部位
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把食鹽加入適量的水中之後,出現什麼變化可以知道食鹽溶解了?
(1)食鹽顆粒不見了
(2)水是鹹鹹的
(3)沒有任何沉澱
(4))以上都對
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食鹽在下列哪一種狀況下的溶解量
最多?
(1) 110毫升冷水
(2) 220毫升冷水
(3) 310毫升溫水
(4) 420毫升溫水
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水牛揹著裝糖的袋子過河,不小心跌入河水中,袋中的糖變少了,是因為糖怎麼了?
(1)在水中融化
(2)在水中溶解
(3)在水中凝固
(4)在水中蒸發
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