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NCFE review terms
vocabulary for the year-41 terms
| Term | Definition |
|---|---|
| Hypothesis | an educated guess |
| Qualitative observation | quality of material like color,used in senses |
| quantitative observation | the number of material |
| procedure | order of experiment, steps |
| independent variable | does not depend an any thing;like |
| dependent variable | depends on a factor of change |
| constant | a steady value;state |
| purpose | an explanation to lab;experiment.. |
| results of data | conclusion of findings |
| inner core | solid ;made of nickel & iron;1220km thick;temperature-6600 celsius |
| outer core | mainly liquid;& iron; |
| asthenosphere | under lithosphere; sofer layer |
| lithosphere | top layer under crust; rigid layer |
| divergent boundary | boundary that divides at plate zones ; like at a rift valley ;mid-Atlantic ridge |
| convergent boundary | boundary that comes together at a zone like forming mountains;plates moved together |
| transform boundary | where plates scrape past each other; like san andreas fault |
| rift valley | a rip or move apart in a zone; like great arift valley in africa |
| hot spot | zone where magma is stored to moved up volcano so as plates move the spot is closed off |
| tectonic plate | plates that are divided to form earth;7major 30+/-minor |
| theory of plate tectonics | a theory that states that earth has plates that support continents as they float |
| continental drift | hypothesis by alfred wagner that continents moved apart due to evidence found |
| pangaea | a single landmass back 250 mya+/- |
| mid-ocean ridge | a ridge mid ocean that goes around earth like a division |
| convection | hot moving currents with heat that encompass the earth; the cause of motion |
| fault | a break in the earth that can build mountains; due to stress |
| stress | a tension that builds in earth that can result in earquakes; tensions-like shearing compression |
| earthquake | a sismic vibration in the earth that causes certain motion; can be scales like on richter, mercalli |
| epicenter | the center of the earthquake on the surface of earth; can be measured by 3 seimograph stations |
| focus | the place in earth of the earthquake that is directly below the epicenter |
| seismograph | a machine that measure the intensity of a quake ; for the P,S,L waves |
| Richter scale | a scale that measure how strong a quake was 1-10( most intense |
| volcano | an opening in the earth that moves material to surface and produces, lava |
| geyser | flowing water opening from under the earth thru that flow onto surface like a fountain |
| subduction | where one plate subducts;goes under anothe plate |
| continental-continental collision | when 2 continents collide into each other to form mountains, |
| oceanic-oceanic collision | when 2 oceanic plates collide into each other and create coastal mts, |
| aftershock | when initial earthquakes motion ;seismic waves happen ; is the damage caused after 1st motion |
| liquefaction | when shaking of ground turns soil into liquid ; flows like water |
| tsunmani | and underground earthquake; usually happens in ocean ;also called a habor wave |
| folded mountain | mountains formed that fold together like |
| mantle | composed of Fe & Mg silicates; thick layer closet to crust |
| lower mantle | 2300km thick;dense layer due to pressure |
Created by:
egjones21
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