Paper strip represents seafloor 2.
Seafloor spreading model parts.
Seafloor spreading occur along relatively narrow areas at the crest of oceanic ridges called.
1 what feature of the ocean floor does the center slit represent.
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.
A model of seafloor spreading key 1.
4 what does the space under the paper.
Also creating a model for sea floor spreading will allow you to see a hands on example of this phenomenon.
Looking at parts of the model have students record their ideas on the student worksheet.
The oldest sections should be the sections on both sides furthest from the middle 4.
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.
Students work as individuals.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
When the strips of paper are pulled out what process does this represent.
2 what prominent feature of the ocean floor is missing from the model at this point.
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 width and length of the base are not critical as long as they are.
The base is best if made from poster board or card stock.
The center slit represents a mid ocean ridge 2.
1 to 5 centimeters per year.
Over time new.
To create a working model of sea floor spreading follow the model seen below figure 1.
The earth does not get bigger.
The strips of paper represent oceanic crust or seafloor.
Subduction and sea floor spreading are processes that could alter the size and form of the ocean.
For instance the atlantic ocean is believed to be expanding because of its few trenches.
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.
The best known ridge on the globe runs straight down the.
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.
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.
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.