Seafloor Spreading Model Parts

1 what feature of the ocean floor does the center slit represent.

Seafloor spreading model parts.

The base is best if made from poster board or card stock. The center slit represents a mid ocean ridge 2. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. 1 to 5 centimeters per year.

The oldest sections should be the sections on both sides furthest from the middle 4. A model of sea floor spreading teacher s guide ellen p. 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. Students work as individuals.

Paper strip represents seafloor 2. Over time new. What does the paper strip used in the model represent in real life. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.

The strips of paper represent oceanic crust or seafloor. 4 what does the space under the paper. 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. For instance the atlantic ocean is believed to be expanding because of its few trenches.

To create a working model of sea floor spreading follow the model seen below figure 1. Seafloor spreading is the creation of new seafloor or new oceanic crust 5. Subduction and sea floor spreading are processes that could alter the size and form of the ocean. Also creating a model for sea floor spreading will allow you to see a hands on example of this phenomenon.

When the strips of paper are pulled out what process does this represent. 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. Looking at parts of the model have students record their ideas on the student worksheet. Geologically are actually submerged parts of the continents.

Spreading rates of are common along the mid atlantic and the mid indian 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. A model of seafloor spreading key 1. This process occurs along divergent plate boundaries at areas called mid ocean ridges.

Modeling sea floor spreading lab questions answer the following questions using your model of sea floor spreading. 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. The width and length of the base are not critical as long as they are. The earth does not get bigger.

Seafloor spreading occur along relatively narrow areas at the crest of oceanic ridges called. 3 what do the side slits represent.