5.10 Using Resources Flashcards
Desalination
The process of removing salt from seawater
Displacement
A chemical reaction in which a more reactive element displaces a less reactive element from its compound
Electrolysis
The splitting up of an ionic compound using electricity.
The electric current is passed through a substance causing chemical reactions at the electrodes and the decomposition of the materials
Finite resources
A non-renewable resource that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption
Ground water
Water held underground in the soil and crevices in rock
Life cycle assessment (LCA)
Life cycle assessments are carried out to assess the
environmental impact of products in each of these stages:
- extracting and processing raw materials,
- manufacturing and packaging,
- use and operation during its lifetime,
- disposal at theend of its useful life
Ore
A rock from which metal can be extracted
Potable water
Water that is safe to drink
Raw materials
The basic material from which a product is made
Renewable resources
A natural resource which can be used repeatedly and will not run out due to being naturally replenished
Sterilisation
The process used to remove bacteria or living microorganisms from something. Used during the treatment of water
Sustainable development
Development that meets the needs of current generations
without compromising the ability of future generations to meet their own needs
Thermosetting polymers
Polymers which do not melt when heated
Thermosoftening polymers
Polymers which melt when heated and can be remoulded into
different shapes
