Plate Tectonics Unit 8 th Grade Subduction Occurs

Plate Tectonics Unit 8 th Grade

Subduction Occurs at converging plate boundaries; the process where one plate slides under another. Image from: http: //biologyeducation. net/News%20 and%20 Articles/images/5_subduction_zones 600 x 376. jpg ; Definition adapted from: Science. Saurus glossary, page 517

Tectonic Plate One of the pieces of the Earth’s rocky crust that rests and moves on the semi – liquid mantle. Image from: http: //www. worldatlas. com/aatlas/infopage/tectonic. gif; Definition adapted from: Science. Saurus glossary, page 497.

Divergent Boundary The lithosperic plates are moving away from each other. Image from: http: //video. ecb. org/badger/download/vlc/images/VLC 173_Divergent_boundary. jpg; Definition adapted from: Science. Saurus glossary, page 481.

Convergent Boundary A boundary where two pieces of the Earth’s crust are colliding. Image adapted from: http: //www. geology 110. com/files/lecshare 1/html/images/objects/obj 51 -1. jpg ; Definition adapted from: Science. Saurus glossary, page 479.

Transform Boundary The boundary between two tectonic plates that are sliding past one another. Image adapted from: http: //www. gweaver. net/techhigh/projects/period 1_2/Yellowstone/Images/transform. jpeg; Definition: www. thefreedictionary. com

Uplift When forces within the Earth push up a section of crust. Image adapted from: http: //gsc. nrcan. gc. ca/geodyn/images/mega 07. gif; Definition: www. thefreedictionary. com

Rift Zone An area where two tectonic plates are moving away from one another. East Rift Zone on Kilauea Image from: http: //images-mediawiki-sites. thefullwiki. org/10/1/5/9/47436943164688946. jpg ; Definition: www. thefreedictionary. com

Sea Floor Spreading New ocean floor is created at a mid – ocean ridge as two tectonic plates move away from one another. Image adapted from: http: //www. unil. ch/webdav/site/igp/shared/stampfli_teaching/T 25 -40. jpg; Definition: www. thefreedictionary. com

Fault A crack within the Earth’s rocky crust. Image from: http: //www. emsc-csem. org/Doc/KALININGRAD_fault-ka. jpg; Definition adapted from: Science. Saurus glossary, page 486.