Picture Of A Blank Sea Floor Spreading Model Activity Cut Out

Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle.

Picture of a blank sea floor spreading model activity cut out.

Students will use actual data from historic oceanographic cruises to examine sea floor spreading. Please refer to the picture as you build this model. In recent years satellite images show a very clear mapping of the seabed and are used extensively in the study and exploration of the ocean floor. Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north.

The earth does not get bigger. As magma starts to harden into rock iron rich minerals solidify first. Most basalt magmas contain abundant molten iron. Activity of the month activity of the month june 2008 plate tectonics and contributions from scientific ocean drilling summary in this activity.

A demonstration of seafloor spreading created by me is included. Using a shoebox or a small box cut a slit on the bottom down the middle about 3 inches long. A model of seafloor spreading key 1. This report describes how to build a model of the outer 300 km 180 miles of the earth that can be used to develop a better understanding of the principal features of plate tectonics including sea floor spreading the pattern of magnetic stripes frozen into the sea floor transform faulting thrust faulting subduction and volcanism.

A model of sea floor spreading teacher s guide ellen p. Sea floor spreading edhelper images e993 com. The oldest sections should be the sections on both sides furthest from the middle 4. Over time new.

Model of sea floor spreading observing plate motions and model of sea floor spreading sea floor spreading project answer key lab 4 read modern interiors living room. 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. The process that continually adds new material to the ocean floor is seafloor spreading and the continental slope. The center slit represents a mid ocean ridge 2.

The strips of paper represent oceanic crust or seafloor. Plate tectonics and the ocean floor. Lab activity sea floor spreading. Cut out the labels approximately 1 tall by 1 2 wide.

They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Students work as individuals. Cut two strips of paper the same width as the slit and about a foot long each. This model represents the flow of lava over time due to plate tectonics at mid oceanic ridges seafloor spreading.