Sea Floor Spreading Model Activity Cut Out

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.

Sea floor spreading model activity cut out.

Simple diagrams and easy to understand explanations of the processes are included. Seafloor spreading is the creation of new seafloor or new oceanic crust 5. To create a working model of sea floor spreading follow the model seen below figure 1. The base is best if made from poster board or card stock.

The oldest sections should be the sections on both sides furthest from the middle 4. Such magnetic patterns led to recognition of the occurrence of sea floor spreading and they remain some of the strongest evidence for the theory of plate tectonics. Please refer to the picture as you build this model. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge.

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. This model represents the flow of lava over time due to plate tectonics at mid oceanic ridges seafloor spreading. Cut out the labels approximately 1 tall by 1 2 wide. Cut 3 slits each slightly more than 8 cm wide.

The strips of paper represent oceanic crust or seafloor. 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. The center slit represents a mid ocean ridge 2. Print cut out and glue together a three dimensional paper model that illustrates sea floor spreading and subduction.

The width and length of the base are not critical as long as they are at least 12 cm wide and 30 cm long. Have students pick up materials needed for the activity. Students will use actual data from historic oceanographic cruises to examine sea floor spreading. Operations carried out far from land and kilometers underwater will likely require expensive technologies sure to cut into your profit margin.

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. Have students work in groups of four. Students will make their own models of seafloor spreading and the magnetic strips that occur in the seafloor. The earth does not get bigger.

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. A model of seafloor spreading key 1. The 4 tactile surfaces will represent rock of various ages depending on how long ago it was laid down. Plate tectonics tennis ball globe model activity print and color a two dimensional world globe showing plate boundaries then cut it out and.