Evidence showing that the coastlines of countries on opposite sides of the Atlantic ocean match up like puzzle pieces.
What is fit of the continents
100
This type of rock is found deep on earth's interior.
What is Intrusive rock.
100
The machine that measures and records earthquake waves.
What is a seismometer.
100
This type of plate boundary is when the plates move together.
What is a convergent plate boundary.
100
This is the largest layer of earths interior.
What is the mantle.
200
Magnetic reversals showed this to support sea floor spreading.
What is the crust was formed at the same place and time on both sides of the mid ocean ridges.
200
This rock is hot molten rock on earths surface.
What is lava.
200
The deformation of material in response to stress.
What is strain.
200
Occurs when hot magma rises to the mid ocean ridge, and the cooled solid rock sinks due to its higher density.
What is a convection current.
200
The hottest and most dense layer of earth's interior.
What is the inner core.
300
The idea that oceanic crust is being pushed outward from the Mid Ocean Ridges, and being pulled into the trenches to be "recycled".
What is sea floor spreading.
300
This type of rock is light and contains high levels of silica.
What is Felsic or Grantic rocks.
300
This type of wave is the fastest, and usually shows up first.
What is the primary wave.
300
This type of plate boundary creates long faults and shallow earthquakes, and an example of this type of boundary is the San Andreas fault.
What is a transform plate boundary.
300
This type of crust of more dense than the other.
What is oceanic crust.
400
This object was used to prove that the ocean floor is not flat, and uses an echo sound to tell the depth of the ocean floor.
What is SONAR.
400
The deposits of rock from volcanic eruptions, classified by their size.
What is tephra or pyroclastics.
400
The three types of earthquake waves.
What is the primary (P) wave, secondary (S) wave, and the surface wave.
400
Gravity helps push the rock away from the mid ocean ridge, and helps the uplifted plate moves towards the trench.
What is ridge push.
400
The main way for discovering what the earths interior is made of.
What is using sound waves.
500
The reason Wegener's hypothesis was not accepted when first put forth.
What is there was no evident force strong enough to push such large landmasses.
500
This type of volcano forms at divergent boundaries.
What is shield volcanoes.
500
This is the point of initial fault rupture, and is usually underground.
What is the focus.
500
Usually hot regions of earths mantle where hot plumes of magma rise to the surface, and it seeps up creating new crust, and pushes the plates outwards.
What is mantle plume or hot spot.
500
The layer of pliable rock, or "plastic" rock that isn't really a liquid, but isn't really a solid either.