| A | B |
|---|
| Name given to the thickest type of crust | Continental |
| Scientist whose theory of plate movement matched rocks and fossils across oceans | Wegener |
| Where one plate goes under another | subduction zone |
| Where new plate material grows | mid-oceanic ridges |
| The San-Andreas fault is one of these | Tear fault |
| Fault where the middle section drops | Rift fault |
| Type of fault where middle section is raised | Horst |
| Scarp fault with uneven break | Reverse fault |
| These move the Earth's plates | Convection currents |
| This is solid and made of iron and nickel | The core |
| The outer core is | Molten |
| This part of the Earth has the lowest density | Crust |
| Scale for measuring earthquakes | Richter |
| Name of the super-continent before drift occurred | Pangea |
| The UK is on this plate | Eurasian |
| Often formed where two plates collide | Mountain ranges |
| The study of earthquakes | Seismology |
| Earth's structure revealed using | Seismic wave analysis |
| Average rate of plate movement | 2 cm per year |
| Rate of movement along the San Andreas Fault | 5 cm per year |
