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layers of the earth
Crustal plate movement
Earthquakes
volcanoes
Miscellaneous
100
what is the inner core made out of?
What is iron
100
What was the name of the earth when all the continents where together?
What is Pangaea?
100
Who are the scientists who study earthquakes?
Who are seismologists?
100
What is an area of earths surface through which gases pass?
What is volcano?
100
What is the area surrounding the pacific ocean?
What is the ring of fire?
200
What is between the crust and the mantle?
What is the lithosphere?
200
What are large pieces of the lithosphere that move around on the earths surface?
What are Tectonic Plates?
200
What is the point inside the earth where the earthquakes occur?
What is a focus
200
What is molten rock under the earths surface?
What is magma?
200
are all tectonic plates the same?
What is no?
300
How thick is the oceanic crust?
What is 5km?
300
Who came up with the hypothesis of continental drift in 1912?
Who is Alfred Wagener?
300
What is a break in a body of rock along which one block slides relatively to another?
What is a fault?
300
What is the body of molten rock, that feeds a volcano?
What is magma chamber?
300
What is the most common type of eruption?
What is non-explosive eruption?
400
What percent of the mantle is the earths mass?
What is 67%?
400
What causes tectonic plates to move?
What are convection currents?
400
What happens when two rocks are pushed together by compression?
What is a reverse fault?
400
What eruption happened in 1980?
What is mount st. helens?
400
how many years ago where all the continents together?
What is 245 million years ago?
500
How many km is it from the crust to the inner core?
What is 6530km?
500
What is the asthenosphere's wave speed?
What is 7 to 11km?
500
What measures the strength or magnitude of earthquakes?
What is the Richter scale?
500
What is the fastest speed lava can travel at?
What is 60km/h?
500
what is the new lithosphere that forms as magma rises to the surface?
What is sea-floor-spreading?