Show:
Earth's layers
Continental drift
Sea Floor spreading
Divergent Boundaries
Convergent Boundaries
100
I am a ball of hot solid metals at Earths center
What is the Core (inner core)
100
Who was the German scientist who hypothesis that the continents were a large single land mass
Who is Alfred Wegener
100
The name for huge under water mountain ranges
What is mid-ocean ridges
100
Another name for divergent boundaries
What is sea floor spreading
100
I form island arcs, deep ocean trenches, and coastal mountains
What is Subduction
200
the layer of hotter, softer rock in the upper man;le
What is asthenosphere
200
What evidence was given for the theory of continental drift
What is fossils,climate and geology
200
What keeps the Earth the same size
What is Ocean trenches
200
What happens to the plates in a divergent boundary
What is moving apart or away from one another.
200
Collision boundaries form
What is mountains
300
The thin layer of rock that surrounds the Earth
What is the crust
300
The name that was given to the super continent
What is Pangaea
300
The motion created when heated material continually rises, cools,and sinks
What is convection currents
300
What is the gap that forms as tectonic plates move apart?
What is Rift Valley
300
I occur where plates with continental crust push together
What is continent to continent collision
400
A thin layer of metals that surrounds the inner core
What is out the outer core
400
The hyypothesis that proposed the Earths continent were once joined in a single landmass and gradually moved apart
What is continental drift
400
The transfer of heat within a material
What is convection
400
I'm the switch in direction of Earth's magnetic north and south poles
What is magnetic reversal
400
Where heated rock rises in plumes from the mantle
What are hot spots
500
I am the earth's thickest layer
What is the mantle
500
During wwII who started mapping the sea floor and why?
What is the military and looking for a hiding place for submarines
500
Name two causes of plate movement
What is Ridge Push and Slab Pull
500
Name the three type of boundaries
What is Divergent,convergent and transform boundaries
500
when two plates scrape past one another in a horizontal way going opposite direction
What is transform boundaries