Science (summative)

Plate Tectonics

  • large chonk of lithosphere that can carry continental crust

  • explains the tectonic and seismic activity

  • scientific theory that explains how major land forms are created as a result of Earthā€™s subterranean movements

  • ā€œflatā€ pieces of lithosphere that cover the dynamic earth

    subterranean - existing, occurring, or done under the earth's surface

Epicenter

  • on the surface

  • directly above the focus

    Focus

  • inside

    Earthquakes releases energy called seismic waves.

    Triangulation method is used to locate the epicenter of an earthquake.

    Tecton

Greek word for ā€œmovementā€ study of movement , creation , and destruction of lithospheric plates.

formulas :

d = Td / 8 secs x 100km

Td = ?

ex.

d = 125km Td = ? Td = (8secs) (d) / 100km

Td = (8secs) (125km) / 100km

Time arrival - add

Time originates - subtract