Continental Drift
Who was the scientist who came up with the idea of continental drift?
Alfred Wegener
Name the volcano type that is explosive.
Stratovolcano
What is the focus of an earthquake?
The origin of the quake underground
Type of plate boundary where the plates move apart
divergent
The top layer of Earth, you live on this layer
Crust
What was the name of the supercontinent from 250 mya?
Pangaea
The name of the smallest, most simple volcano.
Cinder cone
How many seismographs are needed to determine the epicenter?
3
Plate boundary that results in only earthquakes
transform
Thick and least dense layer
continental crust
Name of large ocean when continents were Pangaea
Panthalassa
are volcanoes dangerous?
yes
Describe s waves
slow, shear stress, goes only through solids
Type of boundary that results in a trench and volcanic island arcs.
Oceanic-oceanic convergent
what is the tallest mammal
the giraffe
spinach is high in what mineral?
iron
which city is the home of batman
gotham city
When the solid ground takes on properties of a liquid
Liquefaction
whats the number of dots on a pair of dice?
42
What two elements make up the core?
iron and nickel
Name the evidence used by Wegener to support continental drift
puzzle like fit, animal fossils, glacier striations, mountains and rocks match
Lava type that is jagged and rough
Aa
The closer the epicenter, the ______ the time difference between the P and S wave.
shorter
which planet is closest to earth
venus
Layers of Earth where convection occurs (name two)
Asthenosphere and outer core