
南一國小自然6上ch2-1
Authored by 南一 自然
Science
6th Grade
Used 96+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想讓固態的巧克力變成液態,可以如何處理?
冷卻
加熱
加入鹽
用紙包住
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
熱熔膠從「受熱前」到「受熱後冷卻」的過程,形態經過什麼的變化?
液態→氣態→液態
液態→液態→固態
固態→液態→固態
液態→氣態→固態
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
玉米受熱變成爆米花後,哪一項性質沒有改變?
形狀
顏色
體積
以上性質都有改變
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將裝有水和玻璃管的瓶子放進冰水中,會有什麼現象?
瓶子破裂
玻璃管變大
玻璃管內的水位上升
玻璃管內的水位下降
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把裝有水和玻璃管的錐形瓶(水量相同)分別放入下列四種溫度的水中,哪一瓶的玻璃管中水位最高?
10℃
20℃
30℃
40℃
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
早期的鐵軌之間為何要留有縫隙?
讓鐵軌有膨脹的空間
讓小昆蟲可以通過
維修較方便
火車行駛更快速
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
為了避免橋梁熱脹冷縮而造成損壞,會有怎樣的設計?
橋梁間留空隙
使用堅硬的材質製作
塗上不易吸熱的塗料
天天幫橋梁灑水
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