20/9/2007 unique adj. one and only one 獨特 20/9/2007 opaque adj. not transparent to light 不透明 20/9/2007 granulated adj. in very small pieces of solid 粒狀的 20/9/2007 lump n. the form of a big piece 塊狀的 20/9/2007 viscous adj. used to describe a liquid which is difficult to flow 黏的 21/9/2007 pungent adj. used to describe a gas with really bad smell 刺激性的 21/9/2007 anhydrous adj. absolutely dry 無水的 21/9/2007 volatile adj. used to describe a substance evaporating easily 易揮發的 21/9/2007 aqueous adj. used to describe a substance containing a lot of water 水溶液的 21/9/2007 fundamental n. something very basic 基礎 22/9/2007 particle n. part of an object 粒子 22/9/2007 tiny adj. very small 極小 22/9/2007 elementary adj. used to describe some basic and making up the others 基本的 22/9/2007 evidence n. a fact used to validate a claim 證據 22/9/2007 perfume n. a solution with a pleasant smell for cosmetic purpose 香水 23/9/2007 diffusion n. spreading of a substance from a region of high concentration to a region of low concentration 擴散作用 23/9/2007 crystal n. a solid in with particles are regularly arranged 水晶 23/9/2007 brown n. the colour of iodine in alcohol 棕色 23/9/2007 purple n. the colour of iodine in vapour state 紫色 23/9/2007 black n. the colour of iodine in solid form 黑色 24/9/2007 purple n. the colour of iodine in hexane (non-polar solvent) 紫色 24/9/2007 solution n. a homogenous mixture of two or more substances 溶液 24/9/2007 homogeneous adj. used to describe some uniform or evenly distributed 均相的 24/9/2007 solute n. a substance in a smaller proportion which is mixed with a solvent to make up a solution 溶質 24/9/2007 solvent n. a substance in a larger proportion which is mixed with a solute to make up a solution 溶劑 25/9/2007 dissolve v. "(of a solid) to be absorbed by a liquid, especially when mixed" 溶化 25/9/2007 melt v. to turn a solid into a liquid without added anything else 融化 25/9/2007 magnify v. make something seems to be bigger 放大 25/9/2007 constituent n. the component making up a substance 成份 25/9/2007 definite adj. very certain 明確的 26/9/2007 saturated adj. used to describe a solution which is holding the maximum amount of a solute 飽和的 26/9/2007 Brownian movement n. a irregular random motion observed when pollen grains where place on water surface 布朗運動 26/9/2007 particle theory of matter n. a theory states that all matters are made up of tiny particles 物質的粒子理論 26/9/2007 botanist n. a scientist studying plant 植物學家 26/9/2007 illuminate n. shed light on something 照亮 27/9/2007 pack v. put many things together 擠滿 27/9/2007 pollen n. the powder at the tip of a flower 花粉 27/9/2007 zigzag adj. moving in a Z-shaped path 之字形 27/9/2007 suspend v. stating in the middle of air or solution 懸浮 27/9/2007 kinetic theory of matter n. a theory states that all matters are made up of tiny particles in random motion 物質的分子運動理論 28/9/2007 solid n. a state of matter in which particles are closely packed and not free to move 固體 28/9/2007 liquid n. a state of matter in which particles are closely packed but movable 液體 28/9/2007 gas n. a state of matter in which particles are widely separated and free to move 氣體 28/9/2007 nitrogen dioxide n. a gas which is heavier than air and brown in colour 二氧化氮 28/9/2007 vibrate v. the motion that particles in a solid can do 振動 29/9/2007 volume n. "an attribute which is not a constant only for gas among solid, liquid and gas" 體積 29/9/2007 shape n. "an attribute which is constant only for solid among solid, liquid and gas" 形狀 29/9/2007 compressibility n. a properties of a substance due to the spacing among the particles in the substance 壓縮性 29/9/2007 element n. Definition : a pure substance that cannot be broken down into anything simpler by chemical methods 元素 29/9/2007 electrolysis n. a method in which water is broken up into hydrogen and oxygen 電解 30/9/2007 oxygen n. the most abundant element in earth crust 氧 30/9/2007 silicon n. the second most abundant element in earth crust 矽 30/9/2007 aluminium n. the third most abundant element in earth crust 鋁 30/9/2007 iron n. the fourth most abundant element in earth crust 鐵 30/9/2007 compound n. a pure substance which is made up of more than one element and with fixed composition 化合物 1/10/2007 equation n. short hand' summary of a chemical reaction and its result 方程式 1/10/2007 reactant n. the substance written on the left hand side of a chemical equation 反應物 1/10/2007 product n. the substance written on the right hand side of a chemical equation 生成物 1/10/2007 decomposition n. process of breaking up a compound 分解作用 1/10/2007 heating n. the process in which mercury(II) oxide is broken up 加熱 2/10/2007 glowing splint n. a piece used to test for presence of oxygen 帶火星的木條 2/10/2007 mixture n. an impure substance consists of more than one component which are not chemically combined 混合物 2/10/2007 vinegar n. the acid used in cooking 醋 2/10/2007 ethanoic acid n. the organic acid in vinegar 醋酸 2/10/2007 burning splint n. the piece used to test for hydrogen 燃燒的木條 3/10/2007 hydrogen n. the gas evolved when iron reacts with hydrochloric acid 氫 3/10/2007 hydrogen sulphide n. the gas evolved when iron(II) sulphide with hydrochloric acid 硫化氫 3/10/2007 bad egg n. the term used to describe the smell of hydrogen sulphide 壞蛋 3/10/2007 liberate v. another term for 'release' 釋放 3/10/2007 sharp adj. used to describe the melting point of a pure substance 明確的 4/10/2007 retain v. to keep or continue to have something 保留 4/10/2007 brass n. a metallic alloy containing copper and zinc 黃銅