2 what prominent feature of the ocean floor is missing from the model at this point.
Seafloor spreading model parts.
The best known ridge on the globe runs straight down the.
Looking at parts of the model have students record their ideas on the student worksheet.
Geologically are actually submerged parts of the continents.
When the strips of paper are pulled out what process does this represent.
What does the paper strip used in the model represent in real life.
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.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
3 what do the side slits represent.
The earth does not get bigger.
A model of sea floor spreading teacher s guide ellen p.
1 to 5 centimeters per year.
The center slit represents a mid ocean ridge 2.
Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
Students work as individuals.
Pulling out the strips of paper represents the process of seafloor spreading 3.
Paper strip represents seafloor 2.
For instance the atlantic ocean is believed to be expanding because of its few trenches.
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.
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.
This process occurs along divergent plate boundaries at areas called mid ocean ridges.
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.
Over time new.
To create a working model of sea floor spreading follow the model seen below figure 1.
A model of seafloor spreading key 1.
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.
Also creating a model for sea floor spreading will allow you to see a hands on example of this phenomenon.
Spreading rates of are common along the mid atlantic and the mid indian ridges.
Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.
Subduction and sea floor spreading are processes that could alter the size and form of the ocean.
Seafloor spreading occur along relatively narrow areas at the crest of oceanic ridges called.
The strips of paper represent oceanic crust or seafloor.
The base is best if made from poster board or card stock.
Modeling sea floor spreading lab questions answer the following questions using your model of sea floor spreading.
4 what does the space under the paper.
