SCIENCE 2nd quarter

• earth science is the study of earths structure
• seismology study of earthquakes
• seismologist scientists who study earthquakes
• earthquakes sudden release of energy in earths crust
• fault fracture or discontinuity in the earths crust
• normal fault is due to tensional force (stretching) and hanging wall down and foot wall up
• reverse faults due to compressional force (folding) and hanging wall up and foot wall down
• strike slip faults are shear force
• intensity is how strong or weak the shaking is
• epicenter is surface directly above the focus
• magnitude is the amount of energy released by the earthquake
• seismograph is an instrument that detects
• PAG-ASA means?
• focus is where the earthquake starts
• seismic waves is wave of energy that travels through earths crust
• primary waves are the fastest type of wave
• body waves moves through earths interior
• surface waves moves below the surface of earth
• love wave is fastest type of surface wave
• rayleigh waves are trembling felt from an earthquake
• comets are small chunk of ice and dust
• long period comets come from the oort cloud
• asteriod are irregularly shaped chunks or rock
• famous asteriod are ceres, pallas and juno
• meteor are called shooting stars that break off from asteriods or debris