Appendix New vocabulary Earthquake shaking of the earth due to movements within the crust or volcanic activity – Tsnunami a large sea wave often caused by an earthquake – Seismic waves waves of energy that move through the earth – Seismograph an instrument that measures an earthquake’s force and duration – Seismogram - a graph produced by a seismograph Seismology the study of earthquakes – Epicenter the origin of an earthquake – P wave aka primary wave the seismic wave to arrive at a seismograph. They are – compressional waves. S wave aka secondary or shear waves the second seismic wave to arrive at a seismograph. – They shake the ground perpendicular to the way the wave is moving S P lag time the time between the arrivals of the P and S wave. Seismographs further from – – the epicenter have a longer lag time Triangulation a way of determining the location of something using the location of other – objects. Specifically in seismology, it is the use of various seismographs to determine the epicenter. Analogies Seismic waves can also be described as a drop of water falling into a full cup. The point where the drop fell is the epicenter and the concentric rings away from the epicenter are the seismic waves.
Appendix New vocabulary Earthquake – shaking of the earth due to movements within the crust or volcanic activity Tsnunami – a large sea wave often caused by an earthquake Seismic waves – waves of energy that move through the earth Seismograph – an instrument that measures an earthquake’s force and duration Seismogram - a graph produced by a seismograph Seismology – the study of earthquakes Epicenter – the origin of an earthquake P wave aka primary wave – the seismic wave to arrive at a seismograph. They are compressional waves. S wave aka secondary or shear waves – the second seismic wave to arrive at a seismograph. They shake the ground perpendicular to the way the wave is moving S – P lag time – the time between the arrivals of the P and S wave. Seismographs further from the epicenter have a longer lag time Triangulation – a way of determining the location of something using the location of other objects. Specifically in seismology, it is the use of various seismographs to determine the epicenter. Analogies Seismic waves can also be described as a drop of water falling into a full cup. The point where the drop fell is the epicenter and the concentric rings away from the epicenter are the seismic waves.
Seismology-lesson-plan.docx