Vocab
What is the direct transfer of engergy through open air?
Radiation
Why was Wegener's Pangea and contiental drift theory rejected?
Nothing to push the continents
What causes seafloor spreading?
Magma
Which blundary do the plates come together?
Convergent
What layer is made up of hot, solid material?
Mantle
What is a piece of the Lithosphere that slowly moves over the Asthenosphere?
Plate
Why was Pangea and continental drift accepted?
Seafloor spreading was founf to push the contients
Where does seafloor spreading occur?
Mid-Ocean Ridge
Which boundary do the plates push away from each other?
Divergent
_______ is a rigid layer that makes up the crust and upper part of the mantle.
Lithosphere
What is the transfer of energy through movement of a fluid?
Convection
What year was Alfred Wegener's book, The Origin of Continents and Oceans, published?
1915
What island/country is part of the mid-ocean range?
Iceland
Which boundary do the plates slide past each other in opposite directions?
Transform
What layer is the outer most layer?
Crust
What is the movement of a fluid caused by differences in temperature that transfers heat from one part of a fluid to the other?
Convection Current
What were the three evidences that supported continental drift?
Landforms, fossils, and climate.
Who is responsible for the theory of Seafloor spreading?
Harry Hess
Which plate at convergent boundaries slides under the other plate?
The denser one; oceanic plate
What layer of Earth is liquid?
Outer core
What is a vibration that travels through Earth carrying energy that is released in an Earthquake?
Seismic Wave
How many millions of years ago did Pangea exist?
225 million years ago
What were the three evidences that supported seafloor spreading?
Molten material, magnetic stripes, and drilling samples.
What happens to volcanoes at convergent boundaries?
They erupt
What is the inner core made out of? (What type of metals?)
Iron and Nickel