IS1T1 Introduction to Matter

What is matter/什麼是物質

• Anything visible or touchable/任何可見或可觸摸的東西
• Anything with mass and volume/任何具有質量並佔據空間的東西
• Only solids liquids and gases/只有固體液體和氣體
• Any physical object/任何物理物體

Which of the following is NOT an example of matter/以下哪一項不是物質的例子

• Air/空氣
• Light/光
• Water/水
• Metal/金屬

Why is air considered matter/為什麼空氣被認為是物質

• It is made of gases/它由氣體組成
• It has mass and takes up space/它具有質量並佔據空間
• It moves freely/它可以自由移動
• It can be seen/它可以被看見

Which of these is an example of a physical property/以下哪一項是物理特性的例子

• Melting point/熔點
• Flammability/可燃性
• Reactivity with oxygen/與氧氣的反應性
• Rust formation/鏽蝕的形成

What is the difference between physical and chemical properties/物理特性和化學特性之間的區別是什麼

• Physical properties can be observed without changing the substance/物理特性可以在不改變物質的情況下觀察
• Chemical properties can be seen without experimentation/化學特性可以不通過實驗觀察到
• Physical properties are about atoms chemical properties are about molecules/物理特性關於原子化學特性關於分子
• Both describe how substances react with others/它們都描述了物質如何與其他物質反應

Which of the following is a chemical property/以下哪一項是化學特性

• Odor/氣味
• Flammability/可燃性
• Boiling point/沸點
• Density/密度

Which of the following can ONLY be observed during a chemical reaction/以下哪一項只能在化學反應中觀察到

• Luster/光澤
• Reactivity with acids/與酸的反應性
• Color/顏色
• Shape/形狀

What is a pure substance/什麼是純物質

• A material made of one type of atom or molecule/由一種原子或分子構成的材料
• A homogeneous mixture/均質混合物
• A mixture of elements/元素的混合物
• Any solid or liquid material/任何固體或液體材料

Why is water considered a compound/為什麼水被認為是化合物

• It contains two different elements chemically bonded/它含有兩種化學鍵結的不同元素
• It has a fixed shape/它具有固定的形狀
• It can dissolve other substances/它可以溶解其他物質
• It is made of only one type of atom/它只由一種類型的原子組成

A student observes a shiny soft material that reacts violently with water What kind of property are they observing/案例研究 一名學生觀察到一種有光澤且柔軟的材料 它與水劇烈反應 他們觀察的是哪種特性

• Physical property/物理特性
• Chemical property/化學特性
• Structural property/結構特性
• Mixture property/混合特性