Sea Floor Spreading Classroom Activity

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Sea floor spreading classroom activity.

When a divergent boundary occurs in the ocean seafloor spreading is the result. Modeling sea floor spreading. Seafloor spreading is the process that occurs at mid ocean ridges where new crust is formed through volcanic activity and then gradually moves away from the ridge. Convection currents also recycle lithospheric materials back to the mantle.

At the completion of this activity you should be able to. Once the basalt cools completely into solid rock the. Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north. Printable and compatible with google classroom for distance learning.

Convection currents carry heat from the lower mantle and core to the lithosphere. In 1960 harry hess hypothesis about seafloor spreading was a key component of the plate tectonics revolution. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. Free background music no copyright music brvtvs dead times freebackgroundmusic webs.

In this activity students will use actual data from historic oceanographic cruises to examine sea floor spreading. A worksheet will then test for understanding and introduce global earthquake distribution as an indicator of plate movements. Displaying top 8 worksheets found for activity seafloor spreading. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.

Effective ngss ms ess2 1 and ms ess2 2 quiz. This creates new ocean crust. Most basalt magmas contain abundant molten iron. This interactive activity is simple to prepare and to execute and allows the students to understand seafloor spreading and the position of newer rock and older rock in relation to.

Seafloor spreading and other tectonic activity processes are the result of mantle convection. Sea floor spreading answer key. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Students will observe seafloor spreading in the classroom through a paper towel spreading center demonstration illustrating the relative motion of the plates.

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. Plot data on a. Learn more about sea floor spreading and how it works with this demo. Seafloor spreading is happening at b.

This is a mid ocean ridge. This is an ngss based 10 question quiz about continental drift and sea floor spreading. The quiz mimics how standardized tests generally ask about this topic as questions require si.