Sea Floor Spreading Classroom Activity

A worksheet will then test for understanding and introduce global earthquake distribution as an indicator of plate movements.

Sea floor spreading classroom activity.

In this activity students will use actual data from historic oceanographic cruises to examine sea floor spreading. Most basalt magmas contain abundant molten iron. Printable and compatible with google classroom for distance learning. This creates new ocean crust.

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

This is an ngss based 10 question quiz about continental drift and sea floor spreading. Learn more about sea floor spreading and how it works with this demo. Mantle convection is the slow churning motion of earth s mantle. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.

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 also recycle lithospheric materials back to the mantle. 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. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary.

In 1960 harry hess hypothesis about seafloor spreading was a key component of the plate tectonics revolution. Displaying top 8 worksheets found for activity seafloor spreading. The quiz mimics how standardized tests generally ask about this topic as questions require si. Once the basalt cools completely into solid rock the.

They will also model sea floor spreading at a spreading center such as the mid atlantic ridge. Plot data on a. As magma starts to harden into rock iron rich minerals solidify first. This coloring sheet visu.

When a divergent boundary occurs in the ocean seafloor spreading is the result. Effective ngss ms ess2 1 and ms ess2 2 quiz. Students will observe seafloor spreading in the classroom through a paper towel spreading center demonstration illustrating the relative motion of the plates. Seafloor spreading is happening at b.

This is a mid ocean ridge. Their crystals are pulled into alignment by the earth s magnetic field just like a compass needle is pulled towards magnetic north. At the completion of this activity you should be able to.