tetra brik
DESCRIPTION
Author : Stéphane Le HanTRANSCRIPT
Materials and waste
Part two
Tetra Brik
We’ve shown last week that each material had advantages and disadvantages.
Tetra Brik.
Let’s study Tetra Brik
bottle.
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We can see paper outer and
metal (aluminium) inside.
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We’re trying to separate the
materials.
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Tetra Brik.
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We found :
Paper
Aluminium
Plastic (three times)
cardboard
Tetra Brik.
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We found six layers whichare, from air to drink :
1 - plastic2 - paper3 - cardboard4 - plastic5 - aluminium6 - plastic
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Why plastic ?
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Why plastic ?
Because plastic is watertight.
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Why cardboard ?
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Why cardboard ?
Because without cardboard the bottle would get out of shape.
Tetra Brik.
Why paper ?
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Why paper ?
Because on paper it’s easy to write and draw.
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Why aluminium ?
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Why aluminium ?
Because aluminium protect drink from air (oxygen).
Tetra Brik.
Tetra Brik… the end.
Goodbye…
The french team.