Friday, 14 September 2012

definitions


Polymers - is a substense with a molucul structure of a large amount of similar units bonded togeher
 
Thermoplastic - is a Denoting substance that when heated becomes a haredned plastic when cooled. eg. spectacle frames, tool handles and photographic film
 
thermosetting- a material when heated permently stays hard
eg. home applinces, body of veicheles and
Vacuum forming - is when a sheet of plastic is heated on an object then then applying a vacum between the mould and plastic sheet.
eg. product packaging, speaker casings and car dashboards
Sustainability –  plastic does cause harm to the enviroment such as polluting river systems and oceans. eg. turtles natural food source is the jelly accept now many turtles are mistaling plastic bags with jellyfish therefore when they eat them they choke and sadly die beacues someon may have just thrown a plastic bag out of the car.

                                   steps you and your family can take to reduce plastic
 
there are steps you and your family can take to reduce plastic
1.as say when you go groccery shopping bring a couple of non plastic bags to the store instead of using the ones given to you.
2.recycle as much as possible
 
for more tips click on the web adress eco.allpurposeguru.com/2011/.../plastic-and-environmental-problems
 vacum former

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