i am a grade b student because… ‘…i will come to every lesson and try hard in every lesson. i...
TRANSCRIPT
I am a grade B student because…
‘…I will come to every lesson and try hard in every lesson. I will come on time and complete every homework.’
‘…I am going to try hard and learn this year.’
‘…I will go home and research the unit I am working on so I can get good subject knowledge.’
‘…I will focus on the theory as I realise that is where important marks are to be gained.’
Tertiary/Chemical Recycling:
‘When products are broken down and reformulated’
Use the following short clip to answer the questions on the recycling of glass
http://www.youtube.com/watch?v=6R8YObQbE88
Extension: Are there any potential negative environmental impacts caused by the recycling of glass
Recycling Through Disassembly:
Disassembly: reprocessing materials for use in new products
How does the following clip suggest that a mobile phone can be recycled through disassembly?
What materials in particular are useful to recycle through this process and why?
http://www.youtube.com/watch?v=sCU4o_Ce9PM
Exam-Style Questions:
Which of the following is not primary recycling?
• Giving an item to a charity shop• Re-making the product into something else• Handing items you no longer use to friends
Exam-Style Questions:
Which of the following is not primary recycling?
• Giving an item to a charity shop• Re-making the product into something else• Handing items you no longer use to friends
Exam-Style Questions:
The symbol shown stands for:
• Managed forest• Biodegradable• Timber yard• Picnic area
Exam-Style Questions:
The symbol shown stands for:
• Managed forest• Biodegradable• Timber yard• Picnic area
True or False
Grinding up thermoplastic products and remoulding them into new products is an example of primary recycling…
True or False
Grinding up thermoplastic products and remoulding them into new products is an example of primary recycling…
True or False
The recycling of aluminium drinks cans uses more energy than making new aluminium…
True or False
The recycling of aluminium drinks cans uses more energy than making new aluminium…
Exam-Style Questions:
State the meaning of biodegradable
Exam-Style Questions:
What is it called when a product is reused or its materials are made into another product?
Examination Tips:
• Make sure you read the question carefully!
• How many marks is the question worth? If a question is worth 3 marks, it means you will have to make three different points
• In terms of timing, this paper is worth 60 marks and you have 60 minutes to complete it in… Think about it!!!
• Have confidence!!! You are all clever boys, if you think something might be write, put it down on paper. You don’t lose marks for getting a question wrong
Question Mark Scheme:
Sustainable:
• It can be replenished/re-grown, it is renewable/easily replaced, it will not run out [1]
• The wood can be grown again [1]
• Plastic is from oil which is not renewable/finite resource/run out [1]
Recyclable:
• Can be reused• Made into something else• Plastic pot could be used as a bin• Plastic re-melted/reformed• Wood difficult to recycle as it deteriorates if outside• Wood used to make something else e.g. a bench/fence
[Any 3 of the above for 1 mark each]
Question Mark Scheme:
Sustainable:
• Rots easily in the environment [1]
• Wood rots naturally [1]
• Plastic will not rot/take 1000’s of years to decompose[1]
This question is worth 9 marks. That is over 15% of the total marks for this paper!!!
Product Life Cycles:
‘The stages a new product goes through from conception to eventual decomposition’
We will now discuss…
• Product life cycle
• The afterlife [Product style!!]
Plant Life Cycle
Seed germinates
Plant grows
Plant flowers
Fruit grows
Seeds released
Plant dies
Why Did I Show You That?
• Can you think of any similarities between the life of plants and the life of products?
• Is there anything we can learn from nature regarding the way we dispose of our products after they have been used?
SOURCING
Product Life Cycle
Seed germinates
Plant grows
Plant flowers
Fruit grows
Seeds released
Plant dies
Raw materials
Production
Distribution
Distribution
Using
Disposal
PRODUCTION
MARKETINGTRANSPORTATION
????
The Big Questions?
• What impact does recycling have on a products life cycle?
• Which stage/s are most affected by this?
• What does effective recycling do for a product’s carbon footprint?
Now Your Turn:
Use the keywords provided and the following web links in order to complete a detailed life cycle analysis for a plastic coke bottle:
http://www.youtube.com/watch?v=rbk4M_vYrvg
http://www.youtube.com/watch?v=vBNscAAmIxY
Product Life Cycles:
‘The stages a new product goes through from conception to eventual decomposition’
So…
• What are the names of the key stages of a product’s life cycle