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Science midterm

Terms

undefined, object
copy deck
Indirect evidence
Not staightfoward
Direct evidence
Analysing an example directly-Physically see it
Seismic waves
Vibrations that travel through Earth carrying the energy released during an eq
Radiation
The transfer of energy through space
Convection
The heat transfer by the movement of currents with in a fluid
Conduction
The heat transfer within a material or between materials that are touching
Viscosity
The resistance of a liquid to flowing
Silica
50% of magma is silica. More silica is. Ore viscous
Chemical property
Property that produces a change in the composition of matter
Physical prop
Any characteristic of a substance that can be observed or measured w. Out changung the composition of the substance
Hawaiian volcanow
Rounded top quiet eruptions, oozes
Other volcanoes
Ones that shaped as a cone it shoots up - high viscosity
How to map the ocean floor
Send sonar down to the ocean floor. And record
Convergergent =
Continental continental two plates come together
Convergent un =
Denser plate subducts (oceanic oceanic) ( contininental oceanic)
Density
Mass \ volume-- less dense rises More dense sinks
What causes convection currents
Differences in density
Pangea
The theory that coninets were all once together
Earthquake
Shaking resulting from rock moving under earths surface- caused by moving plates
Focus
The place under the earths surface where rock under breaks
Epicenter
Point right above the focus
Primary waves
Compress and expand fastest , can move through liquid or solid
Secondary wave
Move up down, side side, can go through only solids
Surface waves
Created by the p ansd s waves 2 kinds love and raleigh
Love waves
Move side ways Surface wave Go through liquid and solid
Rayleigh
mo Surface wave Liquid and solid
Fault
(geology) a crack in the earth's crust resulting from the displacement
Mercalli scale
a scale that rates earthquakes according to their intensity and how much damage they cause at a particular place
Richter scale
A scale that rates an earthquake's magnitude based on the size of its seismic waves. More for tv
Moment magnitude scale
a scale that rates earthquakes by estimating the total energy released by an earthquake.
Potential energy
Stored energy
Elastic rebound
the sudden release of stored strain in rocks that results in movement along a fault.
Divergent
plates come together-deep ocean trench eqs
transform
plates slide against shallow eqa

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