Hazardous earth

Question 1

Lithosphere

Answer 1

Cool and brittle layer of the earths mantle

Question 2

Asthenosphere

Answer 2

A hot semi molten mantle layer beneath the tectonic plates

Question 3

Convection current

Answer 3

A stream of fluid moved by heat

Question 4

Convergent boundary

Answer 4

Where two plates collide and the oceanic crust skins beneath the continental crust

Question 5

Divergent (constructive) boundary

Answer 5

Where two plates move apart

Question 6

Conservative boundary

Answer 6

When two plates try to slide past each other at different speeds or in different directions

Question 7

Collision boundary

Answer 7

When two continental plates collide and both push up land in between causing fold mountains

Question 9

Hotspot

Answer 9

When plumes of magma rise to the surface

Question 10

Magnitude

Answer 10

Power of earthquake

Question 11

Primary impact

Answer 11

Things that happen straight away (deaths)

Question 12

Secondary impact

Answer 12

Things that happen after an event (water shortage)

Question 13

Shield volcano

Answer 13

Very small but wide with sloping sides

Question 14

Composite volcano

Answer 14

Built up layers of magma and ash cooling and falling

Question 15

Tectonic plates

Answer 15

Pieces of crust

Question 16

Pyroclastic flow

Answer 16

A cloud with rocks, mud, gas which moves quickly down volcano sides

Question 17

Viscosity

Answer 17

How fast and thick larva is

Question 18

Epicentre

Answer 18

The place directly above the focus (on the surface)

Question 19

Focus

Answer 19

Where the earthquake happens

Question 20

Subduction zone

Answer 20

Where oceanic crust melts into the mantle at a convergent boundary

Question 21

Ocean trench

Answer 21

Dip in the ocean floor at a convergent boundary and both plates have been pulled down

Question 22

Liquifaction

Answer 22

When water rises to the surface and turns clay into mud

Question 23

Continental drift

Answer 23

Gradual movement of continents across earths surface through geological time