Y10 Module 7 Key Words

Acid Rain
rain with dissolved pollutants such as sulphur dioxide that makes the rain acidic
Atmosphere
the layer of gas that surrounds the Earth
Bias(on the internet)
where an unbalanced account of a problem is given to push forward one point of view over another
Bio-fuels
a fuel mad up from living things-usually from plants grown as a crop, such as sugar cane or sugar beet, which is used to produce ethanol, or from seed oils such as corn oil, which is used to create biodiesel
Combustion
another word for burning. A chemical reaction between a fuel and oxygen that gives out heat.
Complete Combustion
when a fuel burns with a good suply of oxygen to form carbon dioxide and water
Crude Oil
the natural form of the fossil fuel oil. A mixture of hydrocarbons
Desalination
turning salt water to fresh water,’removing the salt’.
Distillation
purifying by boiling a liquid, collecting and cooling the gas, and then condensing it back to liquid
Electrolysis
tearing a compound apart using electricity
Ethanol
the type of alcohol in alcholic drinks. Can be used as fuel
Fossil fuels
coal, oil and gas; fuels that formed millions of years ago from the remains of plants and tiny animals
Fractionating column
a tall tower used in industrial fractional distillaton. Different fractions condense at different levels
Fuel
a substance which is burnt to get energy
global warming
a rise in the average temperature of the earth that could lead to climate change, with more storms and droughts in different parts of the world
hydrocarbons
a compound made from carbon and hydrogen atoms only
Ignition
catching fire
incomplete combustion
when a fuel burns without a good enough supply of oxygen, to form deadly carbon monoxide (and/or soot) and water
liquefied
turned into a liquid (in case of air, by cooling to a very low temperatures).
lubricate
reduce friction; for example, oil in an engine or grease on a wheel
methane
the chemical name for natural gas
particulate
tiny particles. carbon particulates are tiny bits of carbon that get into the atmosphere from diesel exhausts
photochemical smog
a choking mixture of particulates, nitrogen oxides and ozone that forms in cities when car exhausts react under strong sunlight
photosynthesis
a process in plants that converts water and carbon dioxide from the air into glucose. Oxygen is given off as a waste gas. The reaction uses energy from the sun
radiate
to give off radiation in the form of electromagnetic waves like light or infared
recycle
use the same material over and over again
residue
something that is left behind. for example, when wood burns it leaves a residue of ash
smog
an unpleasant mixture of fog and smoke that was commmon in the 1940s and 1950s
sootiness
the amount of soot (carbon) produced by burning a fuel
sustainability
being able to keep doing the same thing over and over again without causing harm to the environment.
sustainable development
development that involves balancing the need for economic development, standards of living and respect for the environment
toxic
poisonous
viscosity
how thick or runny a liquid is. low viscosity is very runny, high viscosity is thick

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