| A | B |
|---|
| Layers based on chemistry | Crust, mantle, core |
| Layers based on physical properties | Lithosphere, asthenoshpere, mesosphere, outer core, inner core |
| lithosphere | cool, rigid solid |
| asthenosphere | hot and semi-liquid |
| mesosphere | solid |
| outer core | liquid |
| inner core | solid, center of the earth |
| plasticity | soft and flowing, not completely liquid |
| lithosphere | crust and upper mantle |
| types of crust | continental and oceanic |
| crust | aluminum, iron and magnesium silicates |
| mantle | iron and magnesium silicates |
| core | iron and nickel |
| solid | pressure is greater than temperature |
| liquid | temperature is greater than pressure |
| convection | circular flow of matter |
| seismic waves | sudden movements of the earth's crust |
| direct evidence | volcanic activity |
| indirect evidence | seismic waves |
| moho | boundary between crust and mantle |
| shadow zone | zone where no waves can be detected |
| P waves | can travel through liquids |
| S waves | cannot travel through liquids |
| P and S | types of seismic waves |
| temperature is higher than pressure | liquidlayer is formed |
| pressure is higher than temperature | solid layer is formed |
| temperature and pressure are equal | semi-liquid layer is formed |
