tectonic hazards

Question 1

what is the temperature thickness and substance of the crust

Answer 1

-50-50
thin skin of rock
0-100km

Question 2

what is the temperature thickness and substance of the mantle

Answer 2

500-900
thick molten liquid
2900km

Question 3

what is the temperature thickness and substance of the outer core

Answer 3

4700
magma
2200km

Question 4

what is the temperature thickness and substance of the inner core

Answer 4

5430
solid iron and nickel
1260km

Question 5

name the two types of crust

Answer 5

oceanic and continental

Question 6

what is the oceanic crust made of and is it heavier or lighter

Answer 6

basalt heavier

Question 7

what is the continental crust made of and is it heavier or lighter

Answer 7

granite lighter

Question 8

what is the name of the supercontinent

Answer 8

pangea

Question 9

what two continents were made by the supercontinent

Answer 9

Laurasia and Gondwanaland

Question 10

give four pieces of evidence for continental drift

Answer 10

the continental jigsaw
fossil correlation
rock and mountain
past climate and ice sheet data

Question 11

continent

Answer 11

one of 7 large land masses on earth

Question 12

county

Answer 12

a small part of a country

Question 13

continental drift

Answer 13

study of the movement collision and division of continents

Question 14

where are tectonic hazards most likely to occur

Answer 14

on plate boundaries

Question 15

how should you write an explanation paragraph

Answer 15

point
example/evidence
explain

Question 16

describe a constructive plate boundary

Answer 16

two plates move apart
molten magma rises to fill the gap
this creates new rocks on the sea bed
over time the layers build up and break through the surface of the ocean

Question 17

describe a destructive plate boundary

Answer 17

two plates collide and the heavier oceanic plate is subducted
the oceanic plate sticks as it moves under
heat starts to melt the subducted plate
the magma rises through the gaps and forms volcanoes

Question 18

describe a collision plate boundary

Answer 18

two continental plates crash
the collision triggers earthquakes
the rocks between the plates get pushed up and folded

Question 19

describe a conservative plate boundary

Answer 19

two plates are moving in the same direction but one is faster
as they slide past they snag
pressure and tension build up as the plates lock together
eventually the plates surge apart

Question 20

give an example of a constructive plate boundary

Answer 20

north american and eurasian plates

Question 21

give an example of a destructive plate boundary

Answer 21

south american and nazca plates

Question 22

give an example of a collision plate boundary

Answer 22

indo-australian and eurasian plates

Question 23

give an example of a conservative plate boundary

Answer 23

north american and pacific plates

Question 24

what tectonic hazards are caused by constructive plate boundaries

Answer 24

ocean ridge
volcano

Question 25

what tectonic hazards are caused by destructive plate boundaries

Answer 25

earthquake
volcanic eruption

Question 26

what tectonic hazards are caused by collision plate boundaries

Answer 26

fold mountains
earthquake

Question 27

what tectonic hazards are caused by conservative plate boundaries

Answer 27

severe earthquakes