Matching Pairs Tectonic PlatesOnline version Tectonic Plates by Tabitha Najera 1 divergent 2 plasticity 3 transform 4 earthquakes 5 plates 6 lithosphere 7 ridge 8 convection currents 9 convergent 10 trench 11 Tectonic Plates the circulation of material in the mantle When 2 plates separate a long, very steep ditch along the ocean floor rigid layer broken into pieces called plates a long crack between 2 plates solids that act like liquids, semi-solids Large pieces of Earth’s crust that move due to convection currents When two plates slide A theory stating that the Earth's surface is broken into plates that move when plates shift and cause the Earth to shake when two plates collide