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Презентация, доклад к уроку на тему Paper or Plastic bags (8 класс)
Содержание
- 1. Презентация к уроку на тему Paper or Plastic bags (8 класс)
- 2. We always ask
- 3. On the one hand it’s a
- 4. Paper bagsPaper comes from trees. It takes
- 5. AdvantagesPaper bags take less time to decompose.But
- 6. Disadvantages On the other hand,
- 7. Another and very significant drawback -
- 8. According to the magazine “National Geographic”, in
- 9. According Howstuffworks.com, papermaking pollutes air 70% more than the production of plastic bags.
- 10. Plastic bagsPlastic comes from oil. Everyone of us uses plastic bags in our everyday life.
- 11. AdvantagesAdvantages of plastic bags are undeniable. They
- 12. DisadvantagesPlastic is a very useful material, which
- 13. In fact, in the UK,for example, they recycle only 1 in 200 plastic bags.
- 14. Besides , plastic bags cause over 100,000
- 15. Who is the winner then?
- 16. The best way to carry your
- 17. Reusable Bio bag.
- 18. Some steps have been already made
- 19. Conclusions.Both plastic and paper bags are harmful
We always ask a question when it comes time to decide what to take with you to the store: paper or plastic bag?
Слайд 2 We always ask a question when it
comes time to decide what to take with you to the store: paper or plastic bag?
Слайд 3 On the one hand it’s a simple choice, but lets
think about these two different things. Each has its advantages and disadvantages . Let's look at what they differ.
Слайд 4Paper bags
Paper comes from trees. It takes about three tons of
wood to get one ton of paper pulp.
Слайд 5Advantages
Paper bags take less time to decompose.
But paper bags for us,
in Russia, are not particularly common, such as in the United States. So that we cherish our forests.
Слайд 6Disadvantages
On the other hand, the paper bags have
a number of drawbacks. The main disadvantage of the paper due to the fact that it is afraid of water. Using lamination helps a little.
Слайд 7 Another and very significant drawback - the high cost of
raw materials and ways to improve it. If you take it to a recycling center it means more energy and chemicals are used.
Слайд 8According to the magazine “National Geographic”, in the manufacturing of paper
bags more energy, more water than in the production of plastic bags are used.
Слайд 9According Howstuffworks.com, papermaking pollutes air 70% more than the production of
plastic bags.
Слайд 11Advantages
Advantages of plastic bags are undeniable. They are cheap to produce,
well tolerate humidity, strong and durable.
Another advantage of the polyethylene to paper - the possibility of long-term use. Plastic bag, which served as a time, can be used for a long time.
Another advantage of the polyethylene to paper - the possibility of long-term use. Plastic bag, which served as a time, can be used for a long time.
Слайд 12Disadvantages
Plastic is a very useful material, which is very important in
modern life, but the problem is that it can lie on the ground or swim in the water for decades.
Слайд 14Besides , plastic bags cause over 100,000 sea turtles and other
marine animals to die every year, when animals mistake them for food.
Слайд 16 The best way to carry your shopping and protect the
environment at the same time is to choose a reusable fabric bag.
Слайд 19Conclusions.
Both plastic and paper bags are harmful for our environment.
Paper
bags are even more unhealthy than plastic ones.
Its preferable to use fabric bags or the so-called Bio bags.
Its preferable to use fabric bags or the so-called Bio bags.
