Earths Layers
Volcanos
plate tetonics
Earth Quakes
Wild
100
What is the inner core made of
What is solid
100
How does volcanoes erupt
What is gas bubbles inside magma expand and cause pressure to build up
100
Where two plates rub past each other in opposite directions
What is transform ans boundary
100
what are the effects of an earthquake
What is fires, tsunami, landslides, disease
100
What is the earth made of
What is Rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals
200
What is the outer core made of
What is liquid
200
why does a volcanic eruption occur
What is lighter than the solid rock around it
200
The theory that states that pieces of earths crust are in constant slow motion driven by movement in the mantle
What is the theory of plate tectonics
200
what is ground shaking
What is shaking of the ground caused by the passage of seismic waves
200
what is the structure of earth
What is the interior structure of earth is layered in spherical shells, like an onion
300
How does the liquid in the inner core move
What is generates the earths magnetic field
300
what is a volcano about
What is a rupture in the crust of a planetary-mass object
300
ocean crust is _________ then continental crust
What is more dense
300
what is ground rupture
What is movement on a fault breaks through the surface
300
How deep is the total core of the earth
What is 6,371 kilometers
400
What is at the center of earth
What is metal
400
How are volcanoes formed
What is magna from the earths upper mantel works its way to the surface
400
The place where the two plates collide
What is convergent boundary
400
why do so many earthquakes occur in Japan
What is Japan is located in the ring of fire along the pacific
400
Why do we have a volcano
What is a natural that earth cools of
500
What is a percentage of iron in chemical composition of earth
What is 47% silicon 27% aluminum 8% iron 5% calcium 4% magnesium potassium and sodium 2%
500
what is in a volcanic erupuption
What is a vent or chimney which transfers molten rock known as magma from depth to earths surface
500
A place where two plates move apart
What is divergent boundaries
500
where do aftershocks usually occur that
What is occur where the main earthquake is
500
How many time a day does volcano erupt
What is 50 to 60
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