Earths Interior

• What are the layer that earths made of?

  Crust

  Mantle

  Core
• Why the scientist can't study the deepest region of the earths?

  Due to the heat and pressure
• Where is the study of earths interior mostly done?

  Crust
• Is is a vibration of earths produce by the rapid release of the energy when there is slippage along fault

  Earthquake
• What do you call the energy that travel is all direction?

  Seismic wave
• Where is siemis wave recorded at?

  Seismograph
• What is the two type of seismic waves

  Body waves

  Surface waves
• Where is surface can only travels at?

  Surface
• When surface arrived?

  After the P and S waves
• It was named after the A.E.H

  Love Waves
• How Love waves travels?

  Side-side
• How Love wave causes the ground?

  It twist
• It is the reason most of the damage in structure

  Love wave
• Whonis the person named after Rayleigh waves?

  John Williams Strut
• He predicted this waves in 1985

  Rayleigh waves
• How the Rayleigh waves travels?

  Rolls
• What Rayleigh waves causes the ground?

  Moves in sige-sige and up-down
• Most of the earthquake felt by this waves?

  Rayleigh waves
• Why scientists used body waves instead of surface waves to study earths interior?

  Because of the frequency and how it travels
•  It is after than S waves

  P waves
• P waves also called?

  Compressional
• Where P-waves can travel

  Solid

  Liquid

  Gas
• What P-waves do to the ground

  Moves forward and backward
• It is the first one recorded first in siesmic station ?

  P-waves
• S waves is also called?

  Shear waves
• S waves travels slower than P-waves
• S waves can only travel at?

  Solid
• What S waves do to the ground?

  Rolls the ground in side by side that shakes the ground
• S-waves can only travel at Solid. What Scientist conclude by this?

  Outer core is liquid
• How scientist gained information inin earth interior?

  By studying how seimic waves travels
• What involved in studying the earths interior?

  Measuring it takes for both P and S waves to reach the Siesmic station in time difference
• The farther away the epicenter means the longer interval between the arrival of P and S waves
• How S waves travels?

  In a shear or transverse
• How the waves change it's frequency?

  As they travel to earths interior
• How many km changes happen in waves as they travel deep down?

  50
• Why the waves changes velocity?

  Because of the different density of earth inteior
• What do you call the boundary between crust and mantle?

  Mohorovicic discontinuity  
• What idea lead that there is a different in travels of waves as they travel deep?

  There is different density between Crust and Mantle
• As the depth increases, the density increases
• Where P waves can be detected?

  On the other side of the earth opposite the focus The shadow zone