
自然五下第二單元燃燒和生鏽

Quiz
•
Mathematics
•
5th Grade
•
Easy
Used 13+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
收集蠟燭燃燒後所產生的氣體,再倒入澄清石灰水中輕輕搖晃,澄清石灰水會產生什麼變化?
①沒有變化
②變混濁
③冒出氣泡
④變成藍色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
燃燒的三個條件之一是必須有可燃物,下列哪一項不是可燃物?
①報紙
②酒精
③木材
④氧氣
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小名想自製二氧化碳,他要使用下列哪一個組合才可以成功?
①胡蘿蔔丁+雙氧水
②胡蘿蔔丁+醋
③小蘇打粉+雙氧水
④小蘇打粉+醋
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果不幸身陷火場,應該要怎麼做才正確?
①採低姿勢,沿著牆往逃生方向爬行逃生
②立刻從高樓跳窗逃生
③迅速搭電梯下樓
④將房門全部打開,使空氣流通
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將胡蘿蔔丁和雙氧水混合,會產生什麼現象?
①產生氣泡
②起火燃燒
③產生紅色的煙霧
④雙氧水結冰
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將三個大小相同的鋼絲絨球,分別放入相同的夾鏈袋中,經過下列哪一種方式處理的鋼絲絨球會最快生鏽?
①用透明膠帶包緊再放入夾鏈袋中
②保持乾燥再放入夾鏈袋中
③浸泡清水再放入夾鏈袋中
④鋼絲絨球生鏽的速度是固定的,無法改變
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在迴紋針表面包覆塑膠皮,和下列哪一種物品處理方式的目的不同?
①在鑰匙表面電鍍
②在鐵窗的表面塗上油漆
③將鋼絲絨球浸泡醋
④用不鏽鋼等合金製作餐具
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