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Lesson 12,13,14

Eathquake Vocab words

QuestionAnswer
Siesmology the study of earthquakes
siesmograph an instrument that detects, records, and measures the vibration produced by and earthquake
siesmogram the record made by a siemograph; the paper on which an earthquake waves are recorded
aftershock an earthquake wave that follows the main shock
epicenter the point on the surface of the earth directly above an earthquake
plate tectonic theroy the lithosphere is broken into segments that float ont the athenosphere, and that interjections amoung these plates are associated with earthquakes and volcanic activity and form mid-ocean ridges, trenches, mountians, and chains of volcanic islands
mid-ocean ridge a mountian like landform that develops when places sperate and new ocean lithosphere forms
crust earth's outer layer, the coolest and least dense layer
oceanic crust lies beneath the ocean
continental crust lies mostly beneath land, the thickest when under mountians
mantle the layer of the earth beneath the crust; makes up about 83% of earth's interrior
outer core made of iron, sulfur, and oxygen a liquid layer
inner core made of iron and nickel: it is solid
asthenosphere the layer of mantle below the lithosphere
lithosphere the cool solid outer shell
Created by: trev4cam
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