Waves
Inside
Plates Tectonics
Vocabulary
Wild Card
100
Earthquake waves that travel through solids and liquids.
What is a P (Primary) wave?
100
This makes up 83% of the earth's interior.
What is the mantle?
100
When one plate slides under another plate.
What is subduction?
100
The point in the earth where the earthquake began.
What is the focus?
100
The string of earthquake activity that follows plate boundaries.
What is the Ring of Fire?
200
The paper on which seismic waves are recorded.
What is a seismogram?
200
Contains part mantle and part crust.
What is the lithosphere?
200
When tectonic plate move toward each other.
What are converging plates?
200
A fracture in the earth's bedrock.
What is a fault?
200
Plates spread, collide and slide past each other.
What is responsible for causing earthquakes?
300
The wave that arrives second to the seismograph station.
What is a S (Secondary) wave?
300
The two kinds of earth's crust.
What are oceanic and continental?
300
When tectonic plates move away from each other.
What are diverging plates?
300
A measure of the energy released in an earthquake.
What is magnitude?
300
Moves side to side and travels through the earth.
What is a S-wave?
400
A wave that travels near the top of the earth's crust.
What is a surface wave?
400
One way that scientists know that the outer core is liquid.
What is S-waves do not travel through liquid?
400
When two plates slide past each other.
What is a transform boundary?
400
A mountain like landform that develops when plates separate and new ocean lithosphere forms.
What is a mid ocean ridge?
400
The crust that is thinner but more dense.
What is oceanic crust?
500
The reason that earthquake waves arrive and are recorded at different times on three different city seismograph machines.
What is each city is a different distance from the earthquake's epicenter.
500
This part of the mantle flows and is described as taffy-like.
What is the asthenosphere?
500
This moves the tectonic plates.
What are convection currents?
500
A measure of the amount damage caused by an earthquake.
What is intensity?
500
Can move side to side or push and pull and travels on the earth's surface.
What is a surface wave?
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