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Plate Boundaries

Plate Boundaries. Based on Michigan GLCEs for a 6 th grade audience. What are plates?. The earth’s crust (also called the lithosphere ) is broken up into many “puzzle pieces”. These puzzle pieces are called tectonic plates.

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Plate Boundaries

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  1. Plate Boundaries Based on Michigan GLCEs for a 6th grade audience

  2. What are plates? • The earth’s crust (also called the lithosphere) is broken up into many “puzzle pieces”. • These puzzle pieces are called tectonic plates. • The plates are constantly moving over the liquid mantle of the earth. (On average, plates move about 2 cm per year.)

  3. Three Types of Boundaries • Plate boundaries are named for the way that they move. • There are three types of boundaries; convergent, divergent, and transform. • Convergent plates move TOWARD each other. • Divergent plates move AWAY from each other. • Transform plates SLIDE past each other.

  4. Map of the world’s plate boundaries

  5. Convergent Plates • Convergent plates move TOWARD each other. • They can cause the formation of ocean trenches, mountain ranges and sometimes, volcanoes.

  6. Divergent Boundaries • Divergent plates move AWAY from each other. • They can cause the formation of mid-ocean ridges.

  7. Transform Boundaries • Transform boundaries SLIDE past one another. • Most often the friction created by the rock sliding back and forth results in earthquakes. One of the most famous transform boundaries has created the San Andreas Fault in California.

  8. Are you ready to practice? • Click here if you need to view the presentation again. • Click here if you are ready to take the quiz.

  9. What are the three types of plate boundaries? • Away, toward, past • Mountains, volcanoes, earthquakes • Convergent, divergent, transform • Convergent, transfer, driven

  10. What way do convergent boundaries move? • Toward each other • Away from each other • Past each other

  11. What way do divergent boundaries move? • Toward each other • Away from each other • Past each other

  12. What way do transform boundaries move? • Toward each other • Away from each other • Past each other

  13. Volcanoes are usually caused by… • Transform boundaries • Divergent boundaries • Convergent boundaries

  14. Mid-ocean ridges are usually a result of a … • Divergent boundary • Transform boundary • Convergent boundary

  15. Earthquakes occur when tension in the rocks builds up at a … • Divergent boundary • Convergent boundary • Transform boundary

  16. WELL DONE!

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