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四年級第三段 TIMSS 練習二

Authored by P3 choinong

Science

4th Grade

Used 4+ times

四年級第三段 TIMSS 練習二
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5 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

白天時,在黑暗的房間內透過窗子往外望,可以清楚地看見外面的人,但是外面的人郤看不見房間裏的人,請問原因何在?

從房間裏的人所反射出來的光線不足

光線不能穿過窗子兩次

室外光線不能穿透窗戶

陽光不及其他光源般光線強烈

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

下列那一頂是化學變化?

甲元素的表面被打磨得非常光滑

乙元素被加熱導致蒸發

丙元素靜置於空氣中,產生白色且具有粉狀的表面

丁元素自一混合物中過濾分離出來

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

下列哪一項魚的器官與人類的肺部有相同的功能?

腎臟

心臟

皮膚

4.

OPEN ENDED QUESTION

15 mins • 1 pt

木星的體積比月球大,但在地球上來看,則木星比月球小,為甚麼?

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5.

OPEN ENDED QUESTION

15 mins • 1 pt

一個玻璃杯盛有水和冰共重300克。冰剛剛完全溶解後,你認為重量會是多少?試加以解釋。

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