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1 st QUARTER TEST Prep. SOME STUDY IS HIGHLY RECOMMENDED BY THE MANAGEMENT. Simply put, what is the theory of plate tectonics ?. The earth’s crust is made up of plates that are moved around by convection currents in the mantle. The outer layer of the Earth, the CRUST is what?
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SOME STUDY IS HIGHLY RECOMMENDED BY THE MANAGEMENT
The earth’s crust is made up of plates that are moved around by convection currents in the mantle.
The outer layer of the Earth, the CRUST is what? • Solid, liquid, like putty
The second layer of the Earth, the MANTLE is what? • Solid, liquid, like putty
Like Putty. It is hard like a solid, but it will flow in currents.
The 3rd layer of the Earth, the OUTER CORE is what? • Solid, liquid, like putty
The LOWEST layer of the Earth, the INNER CORE is what? • Solid, liquid, like putty
SOLID - - • The Metal is squeezed together so tightly that the molecules can’t move
The mantle is flowing in currents and moves the plates that float on top of it
Where does the heat come from that heats the mantle and causes it’s convection currents?
The super HOT outer and inner core provide the heat for mantle convection currents
2 plates sliding past each other like 2 trains on parallel tracks
The place where one plate is sliding under another in a convergent boundary
Usually only a centimeter or 2 per year, but India is clocked at 20 cm/yr
Coal in Antartica • The shapes of the continents • Identical fossils around the world • Identical rocks around the world