Minerals And Coal Resources In SA Flashcards
Where do we find minerals?
Inside rocks
What are mineral resources?
All the things we need to live and work.
What metals are mineral resources which we can find in rocks?
Gold, silver, iron, copper and platinum
What are renewable resources?
Resources which can be replaced by the same resource or renewed.
What are 5 examples of renewable resources?
Water, trees, fish, livestock, crops
What are 4 examples of non renewable resources?
Gold, coal, platinum and diamonds
What 3 minerals is South Africa the world’s biggest producer of?
Gold, platinum and chrome
Why are minerals important for South Africa?
South Africa exports minerals, and this makes lots of money for our country.
What are ingots?
Gold bars
What do we call gold bars?
Ingots
What is gold used for?
To make coins, medals and jewellery, and by dentists to fill teeth.
Why is platinum so expensive?
It is very rare.
What is platinum used for?
To make controllers of exhaust gases, disc drives for computers, jewellery.
Why is platinum jewellery more expensive than gold jewellery?
Platinum is rarer than gold.
What is the hardest substance known to us?
Diamonds
What are diamonds used for?
Cutting instruments and jewellery
What do we use to make steel?
Coal and iron ore
What is steel used for?
Pipes, cars, fencing,cutlery, instruments
What makes stainless steel?
Chrome mixed with steel
Why do we need stainless steel?
It doesn’t rust.
Wat can be made from stainless steel?
Pots, pans, kettles, medical instruments
Why are medical instruments made from stainless steel?
They mustn’t rust, as this would be dangerous to people and could make them very sick.
What is copper used for?
Making electrical cables, wires, water pipes.
What is silver used for?
To make jewellery and trophies. It is mixed with other metals to make coins.
