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Sea floor spreading foldable.
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7 different blank foldables that cover continental drift theory seafloor spreading and tectonic plate theory.
Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.
Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading centre important evidence in favour of this process.
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This process occurs along divergent plate boundaries at areas called mid ocean ridges.
Show tanya atwater animations of sea floor spreading.
Tape each strip to make a loop as shown in the diagram below.
As upwelling of magma continues the plates continue to diverge a process known as seafloor spreading.
2 foldables page to save on printing.
Seafloor spreading template sheet a.
Sea floor spreading foldable pdf.
These age data also allow the rate of seafloor spreading to be determined and they show that rates vary from about 0 1 cm 0 04 inch per year to 17 cm 6 7 inches per year.
Circulate the ribbons of paper to simulate the movement that occurs during seafloor spreading.
Seafloor spreading is happening at b.
Seafloor spreading foldable pdf.
Show animation several times to increase understanding while discussing movement of ocean floor what happens as it nears continents etc.
Sea floor spreading answer key.
Pull each strip of paper towards the slits nearest the margins of the paper.
Explore explain 5 minutes sea floor spreading at the mid ocean ridge continuously adds new material to the ocean floor.