Over time new.
Seafloor spreading model parts.
2 what prominent feature of the ocean floor is missing from the model at this point.
Also creating a model for sea floor spreading will allow you to see a hands on example of this phenomenon.
The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american.
The center slit represents a mid ocean ridge 2.
This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.
The earth does not get bigger.
Students work as individuals.
The width and length of the base are not critical as long as they are.
Seafloor spreading is the process of molten material from the mantle being pushed upward to the surface of the earth and spreading apart creating new earth.
Geologically are actually submerged parts of the continents.
1 to 5 centimeters per year.
For instance the atlantic ocean is believed to be expanding because of its few trenches.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
Paper strip represents seafloor 2.
3 what do the side slits represent.
A model of sea floor spreading teacher s guide ellen p.
Due to this continuous seafloor spreading occurs and makes atlantic ocean floor to be connected to other continental crust making the ocean gets wider over the time.
Modeling sea floor spreading lab questions answer the following questions using your model of sea floor spreading.
A model of seafloor spreading key 1.
Seafloor spreading occur along relatively narrow areas at the crest of oceanic ridges called.
What does the paper strip used in the model represent in real life.
The strips of paper represent oceanic crust or seafloor.
This process occurs along divergent plate boundaries at areas called mid ocean ridges.
Students will make a paper model illustrating the concept of sea floor spreading and the development of symmetrical magnetic stripes on either side of a mid ocean spreading center.
1 what feature of the ocean floor does the center slit represent.
Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.
Pulling out the strips of paper represents the process of seafloor spreading 3.
Spreading rates of are common along the mid atlantic and the mid indian ridges.
Subduction and sea floor spreading are processes that could alter the size and form of the ocean.
Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
The oldest sections should be the sections on both sides furthest from the middle 4.
Looking at parts of the model have students record their ideas on the student worksheet.
When the strips of paper are pulled out what process does this represent.
The base is best if made from poster board or card stock.
