Sea Floor Spreading Classroom Activity

Students will observe seafloor spreading in the classroom through a paper towel spreading center demonstration illustrating the relative motion of the plates.

Sea floor spreading classroom activity.

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. Modeling sea floor spreading. 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. Convection currents carry heat from the lower mantle and core to the lithosphere.

Displaying top 8 worksheets found for activity seafloor spreading. Seafloor spreading is the movement of magma through a crack in a mid oceanic ridge. At the completion of this activity you should be able to. The quiz mimics how standardized tests generally ask about this topic as questions require si.

This creates new ocean crust. This coloring sheet visu. As magma starts to harden into rock iron rich minerals solidify first. Most basalt magmas contain abundant molten iron.

Plot data on a. Mantle convection is the slow churning motion of earth s mantle. Free background music no copyright music brvtvs dead times freebackgroundmusic webs. Effective ngss ms ess2 1 and ms ess2 2 quiz.

Seafloor spreading is happening at b. Printable and compatible with google classroom for distance learning. Seafloor spreading and other tectonic activity processes are the result of mantle convection. Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north.

They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Once the basalt cools completely into solid rock the. Sea floor spreading answer key. 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.

This is a mid ocean ridge. This is an ngss based 10 question quiz about continental drift and sea floor spreading. Convection currents also recycle lithospheric materials back to the mantle. In 1960 harry hess hypothesis about seafloor spreading was a key component of the plate tectonics revolution.

When a divergent boundary occurs in the ocean seafloor spreading is the result. A worksheet will then test for understanding and introduce global earthquake distribution as an indicator of plate movements. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.