tectonic plate boundaries

Question 1

what’s a convergent plate?

Answer 1

when the plates push out in opposite directions leaving a space for volcanoes to erupt

Question 2

what is a conservative plate?

Answer 2

when the two platr boundaries rub along eachother to form earthquakes

Question 3

what is a destructive plate?

Answer 3

when the the oceanic plate gets pushed underneath the continental plate leaving room for volcanoes to erupt

Question 4

what is a destructive collision boundary?

Answer 4

when two plates push against eachother and one get broken and piles up above creating a mountain range

Question 5

what are earthquakes measured with?

Answer 5

seismographs, and then they are given a number on the richter scale

Question 6

what is the high test recorded earthquake?

Answer 6

a 9.5 in Chile may 22nd 1960

Question 7

can earthquakes be predicted?

Answer 7

no, but the areas can be predicted
foreshocks could be detected
animals could act strangely
using specific technology, bulges in the ground can be detected

Question 8

what should you do to plan for an earthquake?

Answer 8

-have an emergency kit
-make an emergency plan
-make buildings earthquake proof
-organiser regular earthquake drills (drop cover hold)

Question 9

what do you need in a grab bag?

Answer 9

water + food
warm protective clothing
torch + power bank
sleeping bag
first aid + hygiene products

Question 10

what can you do to protect yourself?

Answer 10

make earthquake resistant buildings
-use cross bracing
-place bricks so they’re sturdier
-shatter proof glass
-shock absorbers
-deep foundations
-steel to make building sway instead of collapsing

Question 11

what are things that influence impacts of earthquakes?

Answer 11

-the type of building your in
-what warning you get
-where it occurs (land, water, deserts)
-the size of the earthquake?

Question 12

what is the epicentre?

Answer 12

the main point of the earthquake

Question 13

what’s a deep and a shallow earthquake?

Answer 13

a shallow quake would be closer to land but a deep one would be further down

Question 14

would there be a difference in the impact of the earthquake depending if it’s shallow or deep?

Answer 14

if a quake is a 6.3 or doesn’t matter where it is the waves would still be the same height, but if it was shallow the energy would reach the surface causing more damage

Question 15

what are impacts of earthquakes?

Answer 15

-tsunamis
-ground cracking
-criminals escaping
-cannot get to work or school
-supplies needed
-buildings destroyed
-animals/ people injured or killed
-gases released
-roads destroyed
-homeless

Question 16

what is an earthquake?

Answer 16

when two tectonic plates try to move past eachother but get stuck and lots of pressure builds up. when the plates finally move the pressure releases causing the ground to shake

Question 17

where is new zealand?

Answer 17

south east of australia
two islands
in the pacific ocean and southern ocean
in the southern hemisphere

Question 18

what plates are new zealand on?

Answer 18

the indo australian and pacific,
which are destructive plate boundaries

Question 19

where is christchurch?

Answer 19

-the south island in new zealand
-on a destructive plate
-on the south east of south island
-a city
right where the plates meet up

Question 20

what is a primary effect?

Answer 20

an effect caused by the earthquake (buildings collapsing)

Question 21

what is a secondary effect?

Answer 21

an effect caused by the primary effect (injuries, money needed for repairs, jobs lost)

Question 22

what is the response?

Answer 22

something done/an action after the event

Question 23

what is liquefaction

Answer 23

when the ground shakes, water rises making things go wonky, then when the water settles back down the objects don’t go back to their original positions

Question 24

which earthquake had more damage, haiti or christchurch?

Answer 24

haiti
-had less money
-complete different living situation
-more destruction
-had to ask for help as countries weren’t doing so
-more injuries and children

Question 25

where is haiti?

Answer 25

hispaniola near mexico, in the southern hemisphere in the atlantic ocean

Question 26

what was the magnitude and time of the haiti earthquake?

Answer 26

2010, 12th january
-7 on the richter scale

Question 27

what were impacts of the haiti earthquake?

Answer 27

-rubble everywhere
-very important buildings collapsed
-crashed cars
-deaths
-many aftershocks

Question 28

what is an active volcano?

Answer 28

a volcano that is liable to erupt at any time

Question 29

what is a dormant (sleeping) volcano?

Answer 29

a volcano which has not erupted for many years but could erupt

Question 30

what is an extinct volcano?

Answer 30

a volcano which has not erupted for thousands or millions of years

Question 31

why would you want to live near volcanic areas?

Answer 31

-fertile soil
-volcanoes are picturesque
-you can use geothermal energy
-tourist attractions
-beautiful stones and minerals can be found, diamonds, rubies, sapphires, emeralds

Question 32

where is iceland?

Answer 32

in the atlantic ocean on a north american and eurasian plate (constructive)

Question 33

what is a tsunami?

Answer 33

a disturbance on the ocean floor, usually an earthquake but a super volcano could also cause one

Question 34

how are tsunamis (Japanese for harbour wave) created?

Answer 34

-an underwater earthquake occurs often on a destructive plate
-water is forced upwards
-gravity tries to pull it back down, so the water separates into waves
-waves move towards the coastline, gathering more energy and size the closer they get to the shore
-the now enormous wave floods rhe coastline

Question 35

where is indonesia?

Answer 35

in indonesia- north west of australia, south east australia, in the indian and pacific ocean

Question 36

what was the boxing day tsunami?

Answer 36

occurred in Sumatra in 2004
had an earthquake of 9.1 and was ten minutes long in the water

Question 37

what is a volcano and what are the parts of one?

Answer 37

an opening or vent in the earths surface through which magma erupts when pressure rises and solidifies as lava

includes a crater, lava, parasitic cone, magma chamber and main vent