Picture Of A Blank Sea Floor Spreading Model Activity Cut Out

The oldest sections should be the sections on both sides furthest from the middle 4.

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

Cut two strips of paper the same width as the slit and about a foot long each. Students work as individuals. Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north. Sea floor spreading edhelper images e993 com.

Plate tectonics and the ocean floor. Over time new. Lab activity sea floor spreading. 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.

Using a shoebox or a small box cut a slit on the bottom down the middle about 3 inches long. A demonstration of seafloor spreading created by me is included. Please refer to the picture as you build this model. The center slit represents a mid ocean ridge 2.

The strips of paper represent oceanic crust or seafloor. As magma starts to harden into rock iron rich minerals solidify first. A model of sea floor spreading teacher s guide ellen p. 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.

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. Activity of the month activity of the month june 2008 plate tectonics and contributions from scientific ocean drilling summary in this activity. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Most basalt magmas contain abundant molten iron.

The earth does not get bigger. Seafloor spreading is the creation of new seafloor or new oceanic crust 5. The 4 tactile surfaces will represent rock of various ages depending on how long ago it was laid down. The process that continually adds new material to the ocean floor is seafloor spreading and the continental slope.

Cut out the labels approximately 1 tall by 1 2 wide. A model of seafloor spreading key 1. Students will use actual data from historic oceanographic cruises to examine sea floor spreading. 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.