Earthś layers
how many cores are in the eath
there are 2 inter-core and outer-core
Earthquakes and Volcanoes are usually located in relation to these
plate boundary
The Himalayan mountains are the result of a ___________________________ boundary.
convergent boundary
how many layers are in the earth
there are 10 earthś crust, mantle outer-core, inner-core, magma, plate tectonics, fault, crust, lithosphere
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
divergent boundary; sea-floor spreading
Hot air or liquid is less ________________ than cool air or liquide
dense
Earth’s inner core is a _____________ a.
dense ball of solid metal
Name four of the major plates
North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate
_________________ are a result from the build up of stress at a plate boundary.
earthquakes
Earth’s solid inner core is surrounded by the hot, molten metal of which layer?
outer core
This is the mechanism (what causes) the plates to move
convection cycles in the mantle
The San Andreas Fault in California is an example of a ____________________ boundary.
transform boundary
The inner core is composed of solid ____________
What is iron
The two types of convergent boundaries
subduction (where volcanoes often occur) and collision (where mountains are usually formed)
This person used sonar to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean.
Harry Hess