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MATERIALS - Coggle Diagram
MATERIALS
PROPERTIES OF MATERIAL
Electrical properties
Electrical conductivity. Some materials
conduct electricity, e.g.
metals
Electrical insulation. Some matenals dont conduct electomty,
e.g, plastic mateoals and wood
Thermal properties
Expansion and contraction: When the temperature increases, the material expands but when the temperature decreases, the material contracts
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Acoustic properties
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Acoustic insulators.Some materials don't conduct sound well,
e g glass, tibre, cork and plastics
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Chemical properties
Oxidation: these happens when a mineral reacts whit oxygen in the air or water. Metals are the most sensitive materials to oxidation
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MANUFACTURED GOOD
A manufactured good is any obiect created bi humans to satisfy
thmr needs and improve their standard of living
- We get raw matenals from nature
- We process them to make materials
- We make goods with these materials
Technical material
TEXTILES: Natural raw materials,e.g wool,cotton and silk plastics
STONE: Stone in different forms and sizes processed into marble,slate,glass and plaster
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WOOD: Tree trunks, e.g fir. pine and Furnitu e floors paper
chestnut
PLASTICS: OiI, coal, natural gas.
vegetable materials
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