Sea Floor Spreading Classroom Activity

This creates new ocean crust.

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. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Seafloor spreading is happening at b. Printable and compatible with google classroom for distance learning.

This is an ngss based 10 question quiz about continental drift and sea floor spreading. Plot data on a. Free background music no copyright music brvtvs dead times freebackgroundmusic webs. Mantle convection is the slow churning motion of earth s mantle.

It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. Sea floor spreading answer key. 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. As magma starts to harden into rock iron rich minerals solidify first.

The quiz mimics how standardized tests generally ask about this topic as questions require si. Seafloor spreading is the movement of magma through a crack in a mid oceanic ridge. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge. Convection currents also recycle lithospheric materials back to the mantle.

Displaying top 8 worksheets found for activity seafloor spreading. In this activity students will use actual data from historic oceanographic cruises to examine sea floor spreading. Seafloor spreading and other tectonic activity processes are the result of mantle convection. At the completion of this activity you should be able to.

Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north. 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. Learn more about sea floor spreading and how it works with this demo. Modeling sea floor spreading.

This coloring sheet visu. A worksheet will then test for understanding and introduce global earthquake distribution as an indicator of plate movements. 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. When a divergent boundary occurs in the ocean seafloor spreading is the result.

Once the basalt cools completely into solid rock the. Most basalt magmas contain abundant molten iron. Convection currents carry heat from the lower mantle and core to the lithosphere.