Seafloor Spreading Model Parts

The width and length of the base are not critical as long as they are.

Seafloor spreading model parts. Spreading rates of are common along the mid atlantic and the mid indian 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. For instance the atlantic ocean is believed to be expanding because of its few trenches. 1 to 5 centimeters per year.

Subduction and sea floor spreading are processes that could alter the size and form of the ocean. Paper strip represents seafloor 2. 2 what prominent feature of the ocean floor is missing from the model at this point. The best known ridge on the globe runs straight down the.

Seafloor spreading is the creation of new seafloor or new oceanic crust 5. 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. To create a working model of sea floor spreading follow the model seen below figure 1. 1 what feature of the ocean floor does the center slit represent.

Students work as individuals. The earth does not get bigger. When the strips of paper are pulled out what process does this represent. 4 what does the space under the paper.

Geologically are actually submerged parts of the continents. Modeling sea floor spreading lab questions answer the following questions using your model of sea floor spreading. Looking at parts of the model have students record their ideas on the student worksheet. Pulling out the strips of paper represents the process of seafloor spreading 3.

Over time new. A model of sea floor spreading teacher s guide ellen p. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. The strips of paper represent oceanic crust or seafloor.

Seafloor spreading occur along relatively narrow areas at the crest of oceanic ridges called. This process occurs along divergent plate boundaries at areas called mid ocean ridges. 3 what do the side slits represent. The oldest sections should be the sections on both sides furthest from the middle 4.

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. The base is best if made from poster board or card stock. Also creating a model for sea floor spreading will allow you to see a hands on example of this phenomenon. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.

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 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.