Sea Floor Spreading Classroom Activity

Learn more about sea floor spreading and how it works with this demo.

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. 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.

Most basalt magmas contain abundant molten iron. This coloring sheet visu. Convection currents carry heat from the lower mantle and core to the lithosphere. They will also model sea floor spreading at a spreading center such as the mid atlantic ridge.

Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge. In this activity students will use actual data from historic oceanographic cruises to examine sea floor spreading. 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 creates new ocean crust.

Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north. Seafloor spreading and other tectonic activity processes are the result of mantle convection. At the completion of this activity you should be able to. Printable and compatible with google classroom for distance learning.

As magma starts to harden into rock iron rich minerals solidify first. In 1960 harry hess hypothesis about seafloor spreading was a key component of the plate tectonics revolution. This is a mid ocean ridge. Sea floor spreading answer key.

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. Plot data on a. A worksheet will then test for understanding and introduce global earthquake distribution as an indicator of plate movements. This is an ngss based 10 question quiz about continental drift and sea floor spreading.

Seafloor spreading is the movement of magma through a crack in a mid oceanic ridge. When a divergent boundary occurs in the ocean seafloor spreading is the result. Modeling sea floor spreading. Convection currents also recycle lithospheric materials back to the mantle.

It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. Mantle convection is the slow churning motion of earth s mantle. The quiz mimics how standardized tests generally ask about this topic as questions require si.