Earthquakes and Volcanoes

Question 1

what is the crust

Answer 1

layer of solid rock

Question 2

what is the mantle

Answer 2

layer of liquid rock

Question 3

what is the outer core

Answer 3

layer of liquid iron and nickel

Question 4

what is the inner core

Answer 4

solid iron and nickel

Question 5

what are the four types of plate boundaries

Answer 5

1) divergent: constructive - plates move away from each
other
2) convergent: deconstructive - plates move towards each other (subduction)
3) transform: conservative - plates move past each over
4) collision

Question 6

draw a diagram of a volcano

Answer 6

should include:
crater
lava
ash could
volcanic bombs
magma chamber
magma
main vent
secondary cone
layer of ash

Question 7

what is the epicentre

Answer 7

the point on the earths surface directly above the focus

Question 8

what is the focus

Answer 8

the point at which the earthquake starts, below the earths surface

Question 9

what is the magnitude

Answer 9

the amount of energy released by earthquakes

Question 10

what does the Mercalli scale measure

Answer 10

the damaged caused by earthquakes