Dustin's Plate Project
science project
it must have happened
if the continents were not together then how would animals like freshwater fish or any type of freshwater animal be on different continents years before people were around?
If the continents were always in the same spot then how would there be the same stuff on different continents?
seafloor spreading
Harry Hess came up with the idea of seafloor spreading
the subduction zone melts down the oceanic crust and makes magma out of it then it goes into the mid-ocean ridges and makes more oceanic crust
plate tectonics
a group of scientest made this idea
plates are huge chunks of rock or land. there are seven plates, all under the continents and oceans the places between plates are plate boundries, there are three types of them, convergent, divergent, and transforming