1) Which crust is the thickest? a) Oceanic b) Continental c) They are the same 2) Which crust is the most dense? a) Oceanic b) Continental c) They are the same 3) What is a divergent boundary? a) plate boundary where new crust is formed b) A plate boundary where crust is destroyedb c) a plate boundary where plates move apartp 4) What is a convergent boundary? a) plate boundary where new crust is formed b) A plate boundary where plates slide against each other c) a plate boundary where plates move toward each other 5) What is an ocean trench? a) a deep channel in the ocean floor where crust is forming b) a deep channel in the ocean floor where crust is sinking 6) A huge wave in the ocean caused by an earthquake occurring on the sea floor is called... a) earthquake b) tidal wave c) tsunami 7) A place where extremely hot material from inside the Earth erupts at the surface is called .... a) volcano b) vent c) crater 8) Subduction is... a) when one plate collides with another plate b) when one plate sinks below another plate c) when 2 plates collide and create uplift 9) A seismometer measures.. a) s and p and surface waves b) the movement of the ground during an earthquake c) all of the above 10) What is the focus? a) The point on the Earth’s surface directly above the earthquakes focus b) The exact point in the earths crust/mantle where the earthquake originates  11) Which plate is subducted under the other when a oceanic plate collides with a continental plate a) Continental Plate b) Oceanic plate

Plate tectonics

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