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STUDY NOTES – Standard 2, Objective 3 PLATE BOUNDARIES 1 • Two plates slide past each other horizontally transform boundary. at a _________ 2 • The Pacific Ring of Fire is a zone of active volcanoes _____________. 3 • When the oceanic and continental oceanic plate lithospheres collide, the _______ subducts _________. 4 • Tectonic plates can include both oceanic and continental crust. ___________ 5 • Food, water, flashlights, and a portable radio prepare for earthquakes. are needed to _______ 6 epicenter of an earthquake is the point • The ________ above the on Earth’s surface directly ______ earthquake’s focus. 7 • The theory that explains why and how plate tectonics. continents move is called _____ 8 transform boundary is the • An example of a _________ San Andreas Fault in California. 9 ridge push, and slab ____ work • Convection, _____ together to produce constant tectonic pull plate _______. motion 10 • Frequent earthquakes in an area may indicate boundaries tectonic plate ___________. 11 • The hottest rock is found in __________ subduction zones rift valleys. and under mid-ocean ___ 12 • During a major earthquake, buildings may collapse sway or ________. 13 • The two sources of energy heating Earth’s decay and heat from mantle are radioactive _______ Earth’s _______. interior 14 beneath • Subduction is when one plate goes ________ another. 15 • Plates move away from each other at a midmid-ocean ridge. __________ 16 • If you are indoors during an earthquake you windows and objects should stay away from ________ stand in a doorway. that may fall; _____ 17 • As Australia drifted away from Asia, its animal evolved into different forms than Asia. life ________ 18 upward • The movement of heated materials ________ and the movement of cooled materials convection downward is called __________. 19 Earthquakes usually occur at plate • ___________ boundaries when rock in environments near tectonic plate boundaries experience great stress ______. 20 denser • When two oceanic plates collide the ________ subducts plate ________. 21 • The rise of the Himalayan Mountains changed wind patterns. world _____ 22 • Rock begins to sink when it has ______ cooled and becomes denser. 23 ridge is a ____ rift • At the center of a mid-ocean _____ valley. 24 plates are blocks of ___________. lithosphere • Tectonic _____ 25 continental plates results • The collision of two __________ mountains in the formation of __________. 26 move when heat • Earth’s tectonic plate’s ______ convection currents in Earth’s creates __________ mantle. 27 size of • The breakup of Pangea changed the ____ the continents and world ________. climates 28 subducting plate boundary will pull the • A __________ down rest of the plate _____. 29 • Earthquakes generally occur at plate stress on rocks is boundaries, where ______ greatest. 30 • The Himalaya Mountains were formed in a ________ collision at a convergent boundary. The End!