| A | B |
|---|
| Earthquake | Vibration caused by fracturing rocks |
| Earthquake | Seismic wave caused usually by tectonic plate movement |
| fracture | The actual breaking of rocks in the Earth |
| Focus | The actual LOCATION of breaking rocks |
| Epicenter | The place on the surface above the focus |
| Focus Depth | Distance between the focus and the epicenter |
| Focus Depth | Noearthquakesdeeperthan700kmrecorded! |
| Seismic Wave | Energy wave made by breaking rocks |
| Primary Wave | Fastest moving seismic energy wave |
| Primary Wave | Compressional wave |
| Primary Wave | Push - Pull wave |
| Primary Wave | First wave to arrive at seismographs |
| Seismographs | Devices that record vibrations in Earth |
| Secondary Wave | Shear energy wave |
| Secondary Wave | Side to side motion wave |
| Secondary Wave | Second wave to arrive at Seismograph |
| Surface or Love Wave | L wave |
| Surface or Love Wave | Most destrutive energy wave |
| Surface or Love Wave | Up and down motion wave |
| Surface or Love Wave | Very short ranged energy wave |
| Primary Wave | P -Wave |
| Secondary Wave | S - Wave |
| Seismology | Science that studies earthquakes |
| Speed up! | Seismic waves going through solids |
| Slow down! | Seismic waves going through liquids |
| S -Waves | disappear going through liquids |
| P -Waves | These waves go through anything |
| Sial Rocks | Rocks rich in silicon and aluminium atoms |
| Sima Rocks | rocks rich in iron and magnesium atoms |
| Continential Crust | Lightest, least dense rocks on Earth |
| Continental Crust | Covers 30% of the Earth's surface |
| Continential Crust | Rich in Sial rocks |
| Ocean Crust | First true "skin" of Earth |
| Ocean Crust | made up of Sima rocks |
| Granite | Most common Sial rock |
| Basalt | Most common Sima rock |
| Moho Layer | Boundary layer between crust and mantle |
| Moho Layer | P-waves speed up through this! |
| Moho Layer | Discovered by Anjira Mohorovic |
| Ocean Crust | Averages around 6 miles in thickness |
| Continental Crust | Averages around 20-30 miles in thickness |
| Asthenosphere | Molten part of the Mantle |
| Mantle | Largest section of the Earth |
| Mesosphere | Mantle section that has plastic flow |
| asthenosphere | where volcanic material comes from |
| transition zone | where decending ocean plates melt |
| D layer | mantle/core boundry |
| D layer | Gutenberg Discontinuity is other name |
| mantle | Rich in Olivine rocks |
| asthenosphere | partly molten |
| transition zones | found under trenches |
| mantle | makes up 68% of mass of planet |
| Core | made of nickel/iron compounds |
| Outer core | largest section of core |
| Outer core | molten part of core |
| Inner core | solid part of core |
| outer/inner core interactions | create earth's magnetic field |
