Earth Quakes
Plate Boundaries
Continental Drift VS. Seafloor Spreading
Earth's Layers
100
a sudden movement of Earth's crust that releases energy
What is an earthquake
100
Plates move apart and form rift valleys and mid ocean ridges
What is Divergent Boundaries
100
developed the Theory of Continental Drift
What is Alfred Wegener
100
What is the Earth's largest layer?
What is Mantle
200
Earthquakes occur at ___ in Earth's crust along which there is movement
What is cracks
200
plates that come together and form folded mountains
What is Convergent Boundaries
200
Developed the Theory of Seafloor Spreading
What is Harry Hess
200
the inner core is.. the outer core is...
What is solid and liquid
300
Cracks in Earth's crust along which there is movement
What is Faults
300
plates that slide past each other and cause earthquakes
What is Transform Boundaries
300
puzzle like fit fossil evidence ancient climates rock features
What is 4 pieces of evidence of the Theory of Continental Drift
300
the study of earthquakes and seismic waves that move through and around the earth.
What is seismology
400
place underground where the rock breaks and shifts
What is focus
400
forms subduction zones - trenches
What is Oceanic - Oceanic
400
where crust is formed
What is ridges
400
very thin and very dense
What is oceanic crust
500
where the energy waves first reach the surface- above the focus
What is epicenter
500
forms volcanic mountains and also subduction zones
What is Continental - Oceanic
500
where crust is destroyed
What is trenches
500
made of crust and upper mantle
What is lithosphere
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