SECONDARY-3
TASK 5
Chapter 18 materials and the environment
Give the definitions for each term :
Biodegradable
Eco-friendly
Extraction
Mining
Draw:
Concept map of materials and the environment
Axe made from stone
Stone usedto light up fire
House made of mud bricks
Deforestation due to excessive logging
House made of wood
Wooden furniture
Rolled paper sheet
Gunny sacks made from jute
Multi-coloured cotton yard
Cotton flowers
Sheep
Winter clothing made from wool
Scarves made from silk
Silk worms
Beautiful hematite ors which are rich in iron
Extration of iron in a blast furnace
Cookware made from aluminium
Aluminium cans
Oil platform
Crude oil distillation process
Glass jars and bottles
Coal mine
Rubber tree
Rubber gloves
Rubber tyres
Blow-moulding technique to make plastic bottles
Plastic injection moulder