Internal Processes
What type of plate boundary is associated with seafloor spreading?
What does temporal mean?
Time!!!
Convection
How is new crust formed at divergent plate boundaries?
Magma rising, cooling, and solidifying
Seafloor spreading!
Where are fold mountains found? (type of plate boundary)
Convergent plate boundaries
Where are the most frequent earthquakes and volcanoes found?
Subduction Zones
What does a hot spot indicate?
Volcanic eruptions
When a tsunami warning is issued, which action should residents take to prevent loss of life?
What causes collisions between oceanic plates and continental plates?
Convection currents in the mantle
What does convection do in the Earth's mantle?
creates currents of rising and sinking material in the mantle
Where type of plate boundary can be found at a mid-ocean ridge?
Divergent plate boundary
What type of seismic wave cannot travel through liquids?
S waves
What is a primary source of heat within the Earth's core?
Radioactive decay
Divergent
What type of seismic wave can travel through uninterrupted to the inner core?
P waves
Why do earthquakes occur along Transform boundaries?
friction and stress between moving plates
Name the type of evidence that provides info about the composition of Earth's interior.
Meteorites (iron and nickel)
Seismic waves
What happens to liquid or gas molecules as they are heated?
Become less dense and rise
Where does the magma that flows through the mid-ocean ridge come from?
the mantle
increases
What geological feature forms when two continental plates meet at a convergent boundary?
Fold Mountains
Iron and nickel are heavier elements (sink to the center)
What process is an internal force in shaping Earth's features?
Plate tectonics
What is one reason why fossils are rarely found in metamorphic rocks?
Metamorphic rocks are found deep within the
Earth (no life)