四年級 第三段 TIMSS 練習五

Quiz
•
Science
•
4th Grade
•
Medium
P3 choinong
Used 5+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
雀鳥唱歌的最重要功能是?
嚇退其他種類的雀鳥
劃清與其他同類雀鳥的疆界
吸引昆蟲
喚醒其他動物
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在海上,兩嫂船上的船員可以呼叫來互相通訊,為甚麼在太空,同樣距離的兩艘太空船的船員,不可能用這方法來通訊?
聲音在太空較多反射
太空船艙內氣壓太高
太空船的速度比聲音快
太空沒有空氣讓聲音傳播
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
下列哪一項是生物的最基本單元?
細胞
骨
組織
器官
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
石油是一種不可再生的天然資源。下列哪一項也是一種不可再生的資源?
木材
海水
陽光
煤
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
有三種氣體存在於地球的大氣層裏:二氧化碳、氮及氧。存在量由多至少的順序如何?
氮>氧>二氧化碳
氮>二氧化碳>氧
氧>氮>二氧化碳
二氧化碳>氧>氮
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在太陽下的濕毛巾會逐漸變乾。甚麼過程令上述情況發生?
熔化
沸騰
凝結
蒸發
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
釋放開一個充滿氦氣的氣球時,氣球會向上升。下哪哪一項最能解釋為何氦氣球會向上升?
氦氣的密度比空氣小
空氣中的阻力使氣球升高
氦氣球沒有受重力影響
風把氣球往上吹
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