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Thursday, August 8, 2019

Science Hurumanu

Aim: To learn practical ways of recycling so that we can make our world a better place.



How can we prevent climate change though recycling these products?



  • Plastics: Recycle plastic so that we don't have to use more and more oil.
  • Cycling or walking: When your driving a car your burning CO2 but when your cycling or walking your not burning CO2. 
  • Paper: When recycling paper means less deforestation.
  • Steel: When recycling steel means less burning of coal.


Video questions:



What is Zero Waste?
One of the quickest and cheapest ways a community can immediately reduce climate impact.
What can we do on the planet?

  1. Reduce  
  2. Redesign 
  3. Reuse 
  4. Repair 
What do we need to recycle?
Raw materials
Plastic
Paper
What does recycling do?


How much of our rubbish is food scraps?
40%
What does soil do to carbon dioxide in the atmosphere?


What do we need to do?
  1. Make P_________s. 
  2. Have Zero waste 

What is a carbon footprint?



How can you make your Carbon Footprint smaller?


ENERGY SAVING TIPS FILM


Name 3 of the tips.
1. Always turning off the lights.
2. Always turn off the switch to the socket.
3. Don't always drive everywhere.

AT WHAT RATES DO DIFFERENT ITEMS DECOMPOSE?

MY INVESTIGATION.

Image result for rates of decomposition


Choose 5 items from the list and investigate them. 
You need to answer these's questions.
Carton, Plastic bags, Aluminum cans, Bottles and Glass.

Name: Carton
How long do they take to decompose? 
Cartons take 5 years to decompose
What resource / fossil fuel are they made from? 
Cartons are made from cardboard, which is made from wood chips and recycled paper. To make cardboard you burn either coal, oil or natural gas.
How is this resource recycled?
Cartons are recycled in two possible ways. At paper mills, the fiber is extracted ans separated in a machine called hydrapulper. Cartons are a sustainable packaging option, but their life-cycle ends if they land up in a landfill.  
How does this object contribute to climate change?
Cartons can't land up in landfill as apart of pollution, which pollution is apart of climate change. 

Name: Plastic bags
How long do they take to decompose? 
Plastic bags take 10-20 years to decompose
What resource / fossil fuel are they made from? 
Plastic bags are made from plastic, which is made from a fossil fuel called oil.
How is this resource recycled?
Those plastic bags can have more than one life when you place them in a rubbish bin, which means you can reuse plastic bags over and over. Recycled plastic bags can be melted down and used to create more plastic bags.
How does this object contribute to climate change?
Plastic bags can't land up in landfill as apart of pollution, which pollution is apart of climate change. 

Name: Aluminum cans
How long do they take to decompose? 
Aluminum cans take 200-400 years to decompose
What resource / fossil fuel are they made from? 

How is this resource recycled?
Those plastic bags can have more than one life when you place them in a rubbish bin, which means you can reuse plastic bags over and over. Recycled plastic bags can be melted down and used to create more plastic bags.
How does this object contribute to climate change?
Plastic bags can't land up in landfill as apart of pollution, which pollution is apart of climate change. 










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