Briefly discribe the inner structure of the earth.
The earth is made up of the inner core witch is solid, The outer core witch is liquid the mantle the lithosphere and the crust.
2 of 18
Expalne how scientist investigate whatlies underneth the earths crust.
Sysmic waves aka s waves
3 of 18
describe the evidence that backs up wegener's theory od continental drift.
matchin layers in the rock and similar earth worms living on africa and south america
4 of 18
What is meant my 'subduction'?
A geologic process in which one edge of one crustal plate is forced below the edge of another.
5 of 18
give an example of what metomorfic rock is and what it is made out of.
its made from other rocks and marble is a type of metomorphic rock.
6 of 18
what material is harder Granit limestone or mirble?
granit is harder than marbe witch is harder than limestone
7 of 18
how is glass made?
glass is made by melting limestone sand and soda.
8 of 18
how is cement and concret made?
cement is made from limestone and clay. concrete is made from cement sand aggregate and water
9 of 18
why is reinforced concrete better than non-reinforced concet as a building material?
reinfourced concrete is a 'composite material' its a combination of concrete and solid steel spport it combines the streanth of concret with the flexibility of steel rods
10 of 18
list 3 invirometal impacts of extracting rocks from earth
1) uses up land and money 2)transport and noise 3)dust
11 of 18
what gets bigger in the pureification prosess Cathode or Anode
Anode
12 of 18
what two metals is brass from
copper and zink
13 of 18
Give an example of a smart alloy
nitiol is the name fiven to nicle and titanium that have shape momory this why they are smart alloys
14 of 18
What is the word equasion for the corrosion of iron?
IRON + OXYGEN + WATER => HYDRATED IRON(III) OXIDE
15 of 18
Explane a car parked on the brighton seafront rusts more than a car parked in a hot, dry cairo.
Sea water speeds up the prosses of rust as it is more acidic towards iron.
16 of 18
Why doesnt alluminium corrode when its wet?
Aluminium does not corrode when its wet becuse aluminium reacts very quickly with oxygen in the air
17 of 18
give 2 advantages of using aluminium instead of steel for the body of a car.
lower dencity and it corrodes less but it is very expencive compaired to steel
18 of 18
Other cards in this set
Card 2
Front
Briefly discribe the inner structure of the earth.
Back
The earth is made up of the inner core witch is solid, The outer core witch is liquid the mantle the lithosphere and the crust.
Card 3
Front
Expalne how scientist investigate whatlies underneth the earths crust.
Back
Card 4
Front
describe the evidence that backs up wegener's theory od continental drift.
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