part of the Earth's mantle. It is a hot, semi-molten layer that lies beneath the tectonic plates. It is between 20 and 70 km thick
1 of 31
Collision Plate Boundary
where two plates collide
2 of 31
Conservative Plate Boundary
formed when two plates slide past each other
3 of 31
Constructive Plate Boundary
formed when two plates move apart
4 of 31
Continental Crust
the part of the earth's crust that makes the continents; it is between 20 and 100km thick
5 of 31
Convection Currents
transfer heat from one part of a liquid or gas to another. In the earth's mantle, the currents which rise from the earth's core are strong enough to move the tectonic plates on the earth's surface
6 of 31
Destructive Plate Boundaries
boundary where two plates are pushed together
7 of 31
Evacuation
when people move from a place of danger to a safer place
8 of 31
Long-term Planning
training in health care
9 of 31
Magnitude
of an earthquake, an expression of the total energy released
10 of 31
Oceanic Crust
the part of the earth's crust which is under the oceans; it's made of basalt and is between 5km and 10km thick
11 of 31
Plate Boundaries
where tectonic plates meet
12 of 31
Prediction
saying that something will happen in the future. A scientific prediction is based on statical evidence
13 of 31
Preparation
Shock absorbers in buildings, earthquake proofing hazardous zones
14 of 31
Short- term Emergency relief
food given in emergency
15 of 31
Tectonic Hazard
are natural events that affect people and property
16 of 31
Lithosphere
the uppermost layer of the earth, it is cool and brittle. It includes the very top of the mantle and the crust
17 of 31
Magnetosphere
a force field that protects the earth from harmful radiation from space and the sun
18 of 31
Plumes
bring magma to the surface. If magma breaks through the crust the lava erupts from a volcano
19 of 31
Subduction
describes the oceanic crust sinking into the mantle at a destructive plate boundary
20 of 31
Volcanic Explosivity Index
measures destructive power on a scale from 1 to 8
21 of 31
Primary Effects
caused instantly by the eruption. These are directly linked to the volcano
22 of 31
Secondary Effects
in the hours, days or weeks after the eruption. These are often caused by the volcano
23 of 31
Social impacts
The impacts on people
24 of 31
Economic Impacts
the impacts on the wealth of the area
25 of 31
Refugees
people who are forced to move due to a natural hazard or war
26 of 31
Aid
help, It can be short term such as food given in emergency, or long term, such as training in health care
27 of 31
Relief Effort
like aid. It is help given by organisations or countries to help those who are facing emergency
28 of 31
Aftershocks
often occur as the fault 'settles' into its new position. They can injure or kill rescuers
29 of 31
Radioactive Decay
some elements are naturally unstable and radioactive. Atoms of these elements release particles from their nuclei and give off heat
30 of 31
Seismometer
a machine for recording and measuring an earthquake
31 of 31
Other cards in this set
Card 2
Front
where two plates collide
Back
Collision Plate Boundary
Card 3
Front
formed when two plates slide past each other
Back
Card 4
Front
formed when two plates move apart
Back
Card 5
Front
the part of the earth's crust that makes the continents; it is between 20 and 100km thick
Comments
No comments have yet been made