3rd Year Christmas Tests Flashcards
Define the term of suitability of materials
Sustainability of materials is the extraction, use ,disposal and recycling of materials in ways that help to maintain these materials for future generations
How do we extract wood?
By logging of trees
How do we use wood?
Paper cardboard construction fuel, etc
How do we dispose of paper/ wood?
Landfills and incinerators are environments and friendly
How do you extract metals?
By mining, an open quarries are underground mines. both are damaging to water supplies and the visual environment the metal is extracted from an orc by either electrolysis or carbon reduction
What do we use metals for?
Jewelry windows construction
How do we dispose of metals?
Landfill
How do we extract plastics?
By drilling for crude oil mixture and then refining it into its various parts i.e. petrol diesel and the chemical from which most plastic polymers are made
What do you use plastic for?
Packaging making various lightweight products, toys clothing
How do we dispose of plastic
Landfill incinerating not sustainable while biodegradable plastic that is sustainable for composting and not wide developed
Define the term electrolysis
Using electricity to breakdown electrolytes to form elements
Define the term non-biodegradable
a kind of substance which cannot be broken down by natural organisms and acts as a source of pollution
What can I do to change gas back into liquid
Distillation
