（一）書櫃之交叉型鐵支有強化結構之作用，其原理為何？
(1) What is the rationale behind the cross-structural reinforcement used in the bookcases?

（二）以在水泥或石材來建建造拱橋、拱門，在結構上有什麼優越之處。
(2) What are the superiorities using concrete/stone to build arch bridges and archway?

（三）鋼為什麼比鐵堅韌？
(3) Why is steel tougher than iron? 

（四）自來水淨化為什麼要加明礬。
(4) Why must alum (Aluminum Sulfate) be added in the purification processes? What is the purpose of adding chlorine to tap water?    
  
（五）仍殘留有養份的家庭污水為何不宜排入河川中？
(5) Why is it not a good idea to discharge water into rivers without removing nutrients via treatment?

（六）為什麼從電廠發電機送出來的電，還要再加高電壓才送出？
(6) Why do we need to convert the voltage output of generators into very high-voltage electricity for distribution?      

（七）溫度提高在微觀的世界是發生了什麼現象？
(7) What cause the temperature increase in the microcosmic world?
     
（八）何謂共振？請舉例說明。
(8) Try to explain what Resonance is. Write down some examples.
     
（九）試敘述電冰箱運作的原理。
(9) Explain how dehumidifiers work.    

（十）放大器為什麼能把訊號（水流或電流）放大？
(10) How can an amplifier magnify the amplitude of signals (of electrical current or water flow)?