托福詞彙

disperse in solvent to form solution

溶解；使溶解

separate liquid components by vaporization and condensation

蒸餾

separation using differences in volatility

蒸餾；蒸餾法

able to recover shape after force is removed

有彈性的；彈性的

negatively charged particle in atomic structure

電子

chemical type defined by number of protons

元素；單一元素構成的純物質

absorbing heat from the surroundings

吸熱的

releasing heat to the surroundings

放熱的

separate particles using a porous barrier

過濾

separation by passing fluid through barrier

過濾；過濾法

capable of igniting and burning readily

易燃的

laboratory vessel with body and narrow neck

燒瓶

able to bend without breaking easily

柔韌的；易彎曲的

ventilated enclosure limiting exposure to airborne hazards

排煙櫃；抽氣櫃

state expanding to fill available container

氣體

narrow marked vessel for measuring liquid volume

量筒

resistance to scratching or indentation

硬度

energy movement driven by temperature difference

熱傳；熱量傳遞

not dissolving to an appreciable extent

不溶的；難溶的

atom or group with net electrical charge

離子

electrostatic attraction between oppositely charged ions

離子鍵

form of element with particular neutron number

同位素

protective outer garment for laboratory work

實驗衣；實驗室工作服

flowing state with definite volume

液體

physical material with mass and volume

物質

equilibrium temperature for solid liquid transition

熔點

curved liquid surface near container wall

彎月面；彎曲的液面

material or element with metallic properties

金屬

combination of substances without fixed chemical ratio

混合物