Friday, October 18, 2013

Theory of plate techonics

   
I learned that places connect and the different places go on the map. Theory of continental drift by Wegner, in 1920 showed that the continents slide over the ocean floor. Geophysicists didn't agree, they thought that the ocean floor didn't have enough power to hold the continents and theory of seafloor spreading by Hess, in 1960, the movement of the continents showed sea floor spreading. Molten magma from under the earth's crust would fill in between the plates, in the Great Global Rift. When it cooled, it would spread apart and push the plates on either side of it, so the Atlantic Ocean would become, wider, but coastlines of the landmass wouldn't change dramatically. The theory of plate tectonics holds that the crust of the earth broken into 6 pieces and many other smaller ones, that any plate may consist, in part, of ocean floor, and in part, of a continent or islands.They collaborate with each and share their ideas. They come to an agreement and diside what to do from there. They may disagree ,but have to come to one solution as a group. They gather information and the scientist come together with all their ideas. 

Friday, October 4, 2013

Memordandum- Sam Harris

         A clam lives in depth range of 40-140 meters and 130-4593 feet. They are only in the south Pacific about seven days sailing from the closest port. the breeding cycle is at night and lasts 4-6 hours.



          To study a clam underwater I would need an oxygen tank to breathe. goggles would be necessary to see the clams underwater. On the boat above water. I would collect my data and information about the clams. I would have a life boat for emergency's. I would also have a rope to the off at the dock or somewhere. I would would have it to save someone too if they need help. I would need other people to help study the clams and for supervision. lastly, I would need seven days worth of food and drinks to survive out there on the boat. With all my supplies I am ready to start my journey studying clams and learning new things about them. I have all the equipment and food supplies I need to make it out alive.