Y10 Module 8 Key Words

Alcohol
A family of chemicals made by fermenting sugars
Alloy
A metal mixture, often with special properties
Binge Drinking
Drinking excessive amounts of alcohol over a short space of time with the intention of getting completely drunk
Breathability
Clothing that lets the water vapour from sweat escape has this
Carbon Fibre
Fibres made from carbon atoms only. They are stiffer than steel
Composite
Something made from more than one type of material, carefully arranged together
Conductor
Something that lets energy, (such as heat or electricity), pass through it easily
Dehydration
(of the body) Not having enough water in the body
Distillation
Boiling a liquid and then cooling and condensing the gas; used to concentrate or purify
Emulsifier
A chemical that stops the oil and water parts from seperating in emulsion
Emulsion
Mixtures of water and oil that do not separate out
Ethanoic Acid
The acid in vinegar. You may hear it called acetic acid, which is the old name for it
Fermentation
The process in which yeast turns sugar into alcohol and carbon dioxide. Used to make beer and wine
Gore-tex
A special fabric that can ‘breathe’ but keeps liquid water out
Hydrophilic
‘Water-loving’ – chemicals that dissolve or mix completely with water
Hydrophobic
‘Water-hating’ – chemicals like oil that do not ‘mix’ with water
Intelligent packaging
Modern packaging that actively controls the environment around the food and stops it going bad
Kevlar
A very strong plastic fibre that can be used for bullet-proof vests
Lecithin
The chemical in egg yolk that acts as an emulsifier in mayonaise
Lycra
A brand of very stretchy polymer (plastic) fibre
Membrane
A very thin layer, or sheet, of material
Microporous
Something with millions of microscopic holes (pores)
Nanobot
A nano-sized machine or robot
Nanocomposite
A material which has nanoparticles used in combination with other materials
Nanometre
One billionth of a metre (10 -9m) – the scale of atoms
Nanoparticle
A particle with a diameter of between 10 and 100 nanometres
Nanotechnology
New technololgy built around the use of nanoparticles
Nanotube
A nano-sized tube made by rolling up a sheet of carbon atoms
Radiate
Spread out from a source. Eg. light from a bulb or infrared radiation from a hot object
Rancid
Oils and fats go rancid when they react with oxygen. It makes them taste bad
Shape-memory Alloy
A special alloy that goes back to its original shape on warming if you bend it
Smart Material
A material that can change its properties when conditions change
Sugar
A sweet-tasting chemical found naturally in fruits
Telfon
The material used to coat ‘non-stick’ pans
Thinsulate
A brand of insultating material that is made from very fine polypropene fibres. Polypropene is a type of plastic
Tagged In :

Get help with your homework


image
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page

Sarah from studyhippoHi there, would you like to get such a paper? How about receiving a customized one?

Check it out