C3.3.6 - Clues in the carpet (Bio and non-biodegradable materials) Flashcards
What is meant by a biodegradable product?
A product that can be broken down by natural processes e.g. decay/rotting
Give 2 examples of biodegradable materials
Wool
Sisal
What makes polypropene useful for making carpets?
- It is hard wearing
- It is easy to clean
Why is wool a useful product?
- It is an insulator
- It does not catch fire easily
- It is soft
Where does sisal come from?
Sisal is a fibre that comes from the leaves of a plant.
What is meant by non-biodegradable materials?
A material that does not rot away naturally over time.
It will remain in the environment for many years.
What makes sisal useful for making carpets?
- It is an insulator (keeps heat in)
- It does not catch fire easily
- It can be made into strong threads
What do we call the woven base of a carpet?
Sisal
What is meant by a synthetic product?
A product that is man made e.g. polypropene from crude oil
What is meant by a natural product?
A product that is made in a natural envrionment e.g. woool or sisal
What causes materials to decay?
Microorganisms such as bacteria or fungi
Name 2 natural materials
Wool (form sheep)
Sisal (from plant leaf fibres)
Polypropene is an example of a…
synthetic polymer
Polypropene is a synthetic polymer. It is made from substances found in..
crude oil
Give an example of a non-biodegradable material.
polypropene