Show:
Earthquakes
Geology
Tectonic Plates
Seismic waves
Earths interior
100
The cracking of tectonic plates causing seismic shockwaves
What is an Earthquake?
100
The rock is made from layers of sediment, that are grainy and crumbly and may contain fossils?
What is sedimentary rock
100
there are 3 types of plate boundaries
What is "Transform,convergent,divergent"?
100
The three major seismic waves
What is the PRIMARY, SECONDARY, and SURFACE WAVES
100
How many layers does the Earth’s interior have?
What is 4
200
In a sudden, violent jerk, the two tectonic plates grate against each other, sending shock waves through the earth
What causes an earthquake?
200
Rocks are formed by the effect of extreme pressures & temperatures deep within the earth?
What is metamorphic rock formation
200
A lithospheric plate is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
What is a Tectonic Plate
200
The fastest moving seismic wave
What is the PRIMARY wave
200
Greek, meaning “without strength”
What is ASTHENOSPHERE
300
After an Earthquake, something occurs later and in the same place along the fault line.
What is an aftershock?
300
There is Molten rock inside the Earth
What is magma
300
Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic.
How far can a plate go
300
Causes the most damage
What is the SURFACE wave
300
The 3 main layers of the earth
What is CRUST,CORE and MANTLE
400
Point on the Earth’s surface directly above an earthquake’s focus
What is the EPICENTRE
400
The rock is cooled under the earht with small crystals in it
What is igneous rock
400
There a large plates scattered in fitting shapes around the earths surface
What is the earths surface made up of?
400
Doesnt travel through liquid
What is the SECONDARY wave
400
What is the name of the layer of the Earth’s interior that comprised of liquid iron?
What is the OUTTER CORE
500
The name of the outer most layer of the Earth?
What is the crust
500
this rock is hard and smooth and shows small crytals in layers (bands)
What is metamorphic rock
500
A transform fault suddenly releases its energy
What is the cause of earthquakes
500
Originates at the focus
What is the PRMIARY AND SECONDARY waves
500
Consists of rock and metal
What is the EARTHS INTERIOR