Sea Floor Spreading Model Activity Cut Out

Activity of the month activity of the month june 2008 plate tectonics and contributions from scientific ocean drilling summary in this activity.

Sea floor spreading model activity cut out.

The earth does not get bigger. Operations carried out far from land and kilometers underwater will likely require expensive technologies sure to cut into your profit margin. 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. In the places where the plates are moving apart magma liquid rock moves up into the cracks and solidifies making a new ocean floor just like cake batter would ooze up through.

A model of seafloor spreading key 1. The base is best if made from poster board or card stock. Seafloor spreading is the creation of new seafloor or new oceanic crust 5. Have students pick up materials needed for the activity.

Plate tectonics tennis ball globe model activity print and color a two dimensional world globe showing plate boundaries then cut it out and. Have students work in groups of four. Print cut out and glue together a three dimensional paper model that illustrates sea floor spreading and subduction. Some of the worksheets for this concept are sea floor spreading work sea floor spreading a model of seafloor spreading inside earth work magnetic reversals activity name date sea floor spreading l 1 2 3 5 4 ovr l lesson 3 seafloor profiling seafloor spreading and subduction.

To create a working model of sea floor spreading follow the model seen below figure 1. The center slit represents a mid ocean ridge 2. Students will make their own models of seafloor spreading and the magnetic strips that occur in the seafloor. Simple diagrams and easy to understand explanations of the processes are included.

The strips of paper represent oceanic crust or seafloor. Students will use actual data from historic oceanographic cruises to examine sea floor spreading. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. This model represents the flow of lava over time due to plate tectonics at mid oceanic ridges seafloor spreading.

Cut 3 slits each slightly more than 8 cm wide. The 4 tactile surfaces will represent rock of various ages depending on how long ago it was laid down. Please refer to the picture as you build this model. Seafloor spreading theory that oceanic crust forms along submarine mountain zones known collectively as the mid ocean ridge system and spreads out laterally away from them.

The width and length of the base are not critical as long as they are at least 12 cm wide and 30 cm long. The oldest sections should be the sections on both sides furthest from the middle 4. Displaying top 8 worksheets found for activity seafloor spreading. Sea floor spreading happens at places where plates are moving away from each other and where the liquid rock from the asthenosphere can come up to the lithosphere.