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Earth`s interio
Earth`s interio

... – Average thickness of 100 Km. • Asthenosphere ...
Earth`s Changing Surface Review
Earth`s Changing Surface Review

... changes in the fluid’s density, and the force of gravity combine to set convection currents in motion. As the convection currents move, they move the crust above them. ...
File - Flipped Out Science with Mrs. Thomas!
File - Flipped Out Science with Mrs. Thomas!

... changes in the fluid’s density, and the force of gravity combine to set convection currents in motion. As the convection currents move, they move the crust above them. ...
Convection Currents
Convection Currents

... At a bigger level, geologists believe convection is what makes tectonic plates move! There is clearly a tremendous amount of heat inside the Earth (just look at volcanoes), which could drive the convection in the mantle. ...
Structure of the Earth Study Guide with Answers
Structure of the Earth Study Guide with Answers

... 20) How do we locate where an earthquake happened? FIND THE DIFFERENECE IN ARRIVAL TIMES OF THE P & S WAVES FROM 3 DIFFERENT SIESMOMETER STATIONS. WE USE THIS TO FIND THE RADIUS OF A CIRCLE AND DRAW CIRCLES AROUND ALL 3 STATIONS. WHERE THE CIRCLES INTERSECT IS THE WHERE THE EARTHQUAKE HAPPENED. ...
Guided Notes on the Causes of Plate Motions
Guided Notes on the Causes of Plate Motions

... set in motion by the transfer of energy between the Earth’s hot interior (core) and cooler exterior (upper mantle). ...
Flares and the chromosphere Hugh S. Hudson and Lyndsay Fletcher
Flares and the chromosphere Hugh S. Hudson and Lyndsay Fletcher

... photosphere in a slowly-evolving manner, and that these currents serve to energize the non-potential fields in the corona. In this sense the chromosphere must play the roles of both the ionosphere and the magnetopause. We can write the perpendicular conductivity as σ⊥,x = ...
Hard X-Ray Polarization – a Diagnostic of Electron
Hard X-Ray Polarization – a Diagnostic of Electron

... Three pairs of detectors with similar background : detectors 8/9, detectors 3/5 and detectors 4/6. The data from detectors 3-6 can be used as background estimate for the polarimeter mode detectors 8/9. ...
HERE
HERE

... liquids (outer core) and solids (inner core). • The type of wave is called compression. It compresses (squeezes) the matter it’s moving through. (*** your chem teacher might call it longitudinal) • Click HERE for P-waves animation ...
Document
Document

... There are approximately 12 lithospheric plates on Earth’s surface. Most scientists believe that convection within Earth’s lower and upper Mantle is the major driving force linked to plate motion. Convection is driven my temperature differences/density differences and gravity. ...
Activity 1 quiz File
Activity 1 quiz File

... 10) _____ Which type of seismic wave arrives first at the seismic station on the surface because it travels the fastest? a) S-waves b) P-waves c) Surface waves 11) _____ Which type of seismic wave causes the most damage to buildings? a) S-waves b) P-waves c) Surface waves 12) _____ Which type of se ...
Are the oceans spreading at the mid
Are the oceans spreading at the mid

... The yellow dot shows a massive underwater chain of mountains that stretch right down the Atlantic. It is called the Mid-Atlantic Ridge and it is an area where new ocean floor material is constantly being created. Oceanic surveys found that such mountain chains extend all over the world. A more detai ...
Name
Name

... _____ 14. Seismic waves that travel along Earth’s surface are a. surface waves. b. body waves. c. secondary waves. _____ 15. Which of the following is the fastest type of seismic wave? a. surface waves b. S waves c. P waves _____ 16. An S wave is unable to travel through a. solids. b. liquid. c. roc ...
earthquakes
earthquakes

... • Shaking and trembling of the earth’s crust. • About 8000 occur every day or one every 11 seconds • Caused by plates sliding beside each other • Tsunami - earthquake on the ocean floor: causing waves to become greater than 20 meters high ...
The mechanics of tectonics
The mechanics of tectonics

... When the plates of the earth’s crust exert pressure on one another as they move, the rocks that make up these plates are subject to extreme stress. During a latent period, this stress is absorbed by a certain elasticity. But beyond a particular point, a sudden rupture occurs, either along an existin ...
Ch - saddlespace.org
Ch - saddlespace.org

... 4. Earthquake energy travels in WAVES P-Wave or Primary, travels fastest through all the Earth in a push and pull, back and forth motion. These waves are usually not felt (6-10km/sec). Can travel thru any material. (solid, liquid or gas) S-Waves or Secondary waves travel at right angles to their dir ...
PlateTectonics_part2..
PlateTectonics_part2..

... Made of material that conducts electricity Core is mobile ...
angle of inclination
angle of inclination

... poles! In green is shown where rocks from Eurasia say the magnetic pole should be, and in red are the data points from North America. Obviously, there is only 1 magnetic pole, so if you move the continents together, the lines tracing the location of the magnetic pole through time for these two conti ...
Convection - Animated Science
Convection - Animated Science

...  It depends on, in general, fluids expand when heated and become less dense.  This is a domestic hot water tank. ...
8th Science Parent - Westerville City Schools
8th Science Parent - Westerville City Schools

... motions that explain such phenomena as days, years, seasons, eclipses, tides and moon cycles. Explain that gravitational force is the dominant force determining motions in the solar system and in particular keeps the planets in orbit around the sun. Explain that the universe consists of billions of ...
Earth`s magnetic field
Earth`s magnetic field

... Elements that have unpaired electrons (e.g., Fe, Mn, Cr, Co) are effected by a magnetic field. If a mineral containing these minerals cools below its Currie temperature in the presence of a magnetic field, the minerals align in the direction of the north pole (also true for sediments). ...
Plate Tectonics
Plate Tectonics

... • Sir Francis Bacon 1620: – “It appears that South America and Africa fit together” ...
Document
Document

... • Sir Francis Bacon 1620: – “It appears that South America and Africa fit together” ...
Layers of the earth and convection currents
Layers of the earth and convection currents

... B  Rising material hits rigid lithosphere and cannot go up any further. C  The force of gravity is causing denser material to fall. D  Core heat causes temperature to rise, therefore decreasing the density of material ...
Seismic Waves
Seismic Waves

... Scientist study earthquakes to know more about the earth. To study earthquakes scientist use seismographs. Seismographs measures the the movement and vibration of earthquakes. It also tells what kind of seismic wave it is. Seismic waves are vibrations caused by rocks moving or breaking along faults ...
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Ionospheric dynamo region

In the height region between about 85 and 200 km altitude on Earth, the ionospheric plasma is electrically conducting. Atmospheric tidal winds due to differential solar heating or due to gravitational lunar forcing move the ionospheric plasma against the geomagnetic field lines thus generating electric fields and currents just like a dynamo coil moving against magnetic field lines. That region is therefore called ionospheric dynamo region. The magnetic manifestation of these electric currents on the ground can be observed during magnetospheric quiet conditions. They are called Sq-variations (S=solar; q=quiet) and L-variations (L=lunar) of the geomagnetic field.Additional electric currents are generated by the varying magnetospheric electric convection field. These are the DP1-currents (the auroral electrojets) and the polar DP2-currents. Finally, a polar-ring current has been derived from the observations which depends on the polarity of the interplanetary magnetic field. These geomagnetic variations belong to the so-called external part of the geomagnetic field. Their amplitudes reach at most about 1% of the main internal geomagnetic field Bo.
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