the idea proposed by Wegner that the continents were once together in a single landmass called Pangaea and then over millions of years spread out to where they are today
What is the continental drift theory
100
the number of the layers of the Earth (both composition and physical properties)
What is seven
100
along the mid-Atlantic ridge new seafloor is being created and it is inferred that the Atlantic Ocean will become wider over time due to this
What is sea-floor spreading
200
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What is the formula for the volume of a REGULAR (rectangle) shaped object
200
the current stage our sun is in it's life cycle
What is main sequence
200
the idea that the tectonic plates move and we know this because of features that are formed at different plate boundaries (mountains, volcanoes, trenches, etc.)
What is the tectonic plate theory
200
the layer that convection currents occur in
What is the asthenosphere
200
the subduction of a more dense plate under a less dense plate; the subducted plate is then melted in the mantle
What is subduction zone
300
Anna took a graduated cylinder and filled it to 50mL. She then dropped in a metal star and the water in the cylinder rose to 75mL. This is the name of the method used to calculate the volume of an IRREGULAR (non-rectangle) shaped object.
What is the displacement method.
300
the remaining stages of our sun's life cycle (think quaker fan)
What are red giant, white dwarf, and black dwarf.
300
the movement of material below the plates; cool dense material sinks is heated by the core (energy transformation) and then becomes less dense and rises- this is what makes the plates move
What are convection current in the mantle
300
the layer that contains the crust and upper mantle
What is the lithosphere
300
the kind of stress a stretched metal represents
What is tension
400
the mass is 25g; the volume is 10mL; the density is
What is 2.5g/mL
400
the shifting of light on a spectrogram to the red side indicating an object is moving away
What is a red-shift
400
convergent, divergent, and transform
What are the three types of plate boundaries
400
the waves that scientists analyze to determine if the Earth layers are liquid or solid
What are seismic waves
400
the youngest rocks are on top and the oldest are on the bottom in an undisturbed pattern
What is the law of superposition
500
less dense hot material rises and colder more dense material sinks
What is a convection current
500
the explanation of the expansion of our universe
What is the big bang theory
500
the boundary that trenches are formed at
What is convergent (oceanic/oceanic or continental/oceanic)
500
the layer that is responsible for our magnetic field
What is the liquid outer core
500
the formation of a volcano due to the movement of a plate over this