C2 Materials and choices quiz
OCR 21st century science C2. A quiz my teacher gave to me a while ago...
- Created by: furuba fan
- Created on: 07-05-12 16:56
Other questions in this quiz
2. Higher melting point also...
- means the same energy is needed to break the molecules apart from each other
- is not related to energy because melting point is a temperature
- means more energy is needed to break the molecules apart from each other
- means less energy is needed to break the molecules apart from each other
3. Which of these methods cannot be used to dispose of plastics?
- recycle it
- let it rot
- burn it for energy
- bury it in a landfill
4. Cling film is soft and stretchy. What has been done to polythene so it has these properties?
- Molecules are given branches
- Cross links are made between the molecules
- Plasticisers are added
- Crystallinity is increased
5. The aim of LCA's are to find the most sustainable method for products.
- True
- False
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