Vid Clips: Convection in the Mantle & Cont DriftVersion en ligne Convection in the mantle and continental drift par Benjamin D Morgan 1 What theory are they discussing in this section? a Continental drift b Layers of the Earth c Plate Tectonics d Convection 2 What do the convection currents do? a Move the lithosphere b Causes radiation c Causes basaltic rock to form d Convection 3 The Earth's lithosphere is... a One giant piece floating on the mantle b Cracked into huge sections c Cracked into millions of tiny sections d Convection 4 What moves the cracked sections (tectonic plates) a Wind b Ocean currents c Convection currents d Radiation currents 5 Convection currents drive which? (pick all correct choices) Select one or more answers a Lithosphere (crust & upper mantle) to move b Ocean currents c Wind d Radioactive core e Volcanoes 6 What causes the continents to move? a Conduction b Convection c Radiation d Radioactive core e Volcanoes 7 Crust is... a Destroyed/melted in some places b Never destroyed/melted. c Radiation d Radioactive core e Volcanoes
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