The world of science

                              plate tectonics
Plate tectonics is the science and study of the causes of, and relative motions of, Earth's lithospheric plates.  
                           Until the mid twentieth century, the evidence consisted mostly of fossil similarities in areas that were considered to have been joined geographically earlier in Earth's history. No mechanism had been revealed, however, to explain why continents would move apart. In the 1950's, a scientific expedition was made to map the ocean floor. The exploration revealed a more or less continuous seismically active ridge in the middle of the Atlantic Ocean. Later, it was discovered, with the use of a magnetometer mounted in an airplane, that rock on either side of the ridge was chronologically a mirror image of the rock on the other side. This was due to the magnetic orientation of the Earth, which can abruptly change, being recorded in the rock at the time of its formation. This creation of new crust at the mic-ocean ridges was the mechanism for plate movement that had previously been undiscovered, leading to the understanding of lithospheric plate tectonics that we know today.

  As the plate tectonic move cause fault zone which mean the transform boundary,so also cause earthquake and tsunami.Fault zone has three type of fault which is normal fault,reverse fault and strike-slip fault.Normal fault is rock moves down.Reverse fault is rock moves upward.Strike-slip fault is rock moves opposite different direction.

     As the plate tectonic move cause occur theory of continental drift which is through time continents broken slowly.In 1912,Alfed Wegener was thought theory of continental drift.From the past,all land was together which call Pangaea.The evidence of Pangaea were puzzle,fossils,rock and mountain.

   my opinion about this are the plate tectonic was get by the earthquake. butSome positive effects of plate tectonics are when a convergent boundary occurrs, it can create sights such as volcanoes and mountains. Without them, the Earth would be a dull flat boring place.

Reflection 

1. I enjoy in this project was to learn how does the plate tectonic work and how that effect the earth.

2.The challenging of this project was to find the information about the plate tectonic.

3.The new skill i doing this project was learn more information about plate tectonic.

4.Nothing was improve my work.

5.Nothing i will change on my project....