By Jessica Nienberg The Interior of the Earth The Interior of the Earth *Grade 8 *Earth Science *ODE...
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- Slide 1
- Slide 2
- By Jessica Nienberg The Interior of the Earth
- Slide 3
- The Interior of the Earth *Grade 8 *Earth Science *ODE
Standards/ Content Statement: The composition and properties of
Earths interior are identified by the behavior of seismic waves.
*Students will collaborate with one another in groups of 3 to
create a presentation describing the contents of the Earths
interior, how these findings were discovered, and how the interior
effects the exterior.
- Slide 4
- MAIN MENU Seismic Waves Seismic Waves -Seismic Reflection
-Seismic Reflection-Seismic Reflection-Seismic Reflection -Seismic
Refraction -Seismic Refraction-Seismic Refraction-Seismic
Refraction -Seismograph and Seismogram -Seismograph and
Seismogram-Seismograph and Seismogram-Seismograph and Seismogram
Earths Layers Earths Layers -The Continental Crust -The Continental
Crust -The Oceanic Crust -The Oceanic Crust-The Oceanic Crust-The
Oceanic Crust -The Mantle -The Mantle-The Mantle-The Mantle -The
Outer Core -The Outer Core-The Outer Core-The Outer Core -The Inner
Core -The Inner Core Plate Tectonics Plate Tectonics -Earthquakes
-Earthquakes-Earthquakes -Volcanoes -Volcanoes -Mountains
-Mountains Terms Newspaper Project Newspaper Project
References
- Slide 5
- Seismic Waves Earthquake releases seismic waves Used to obtain
information about the interior of the Earth Body Waves-waves that
only travel only through Earths interior Primary (Compressional)
Secondary (Shear) Surface Waves- travel across exterior
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- Seismic Reflection A method used to return energy to Earths
surface after the waves bounce off underlying rock boundary
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- Seismic Refraction The bending of seismic waves as they pass
between different types of materials
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- Seismogram: Recording of each type of wave Seismograph: The
instrument that detects seismic waves
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- The Crust The Mantle The Outer Core The Inner Core The 4 Layers
of the Earth
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- Continental Crust The layer of Earth found beneath the
continents Made of less dense rock Thickness varies Ranges between
10- 75 kilometers Older than oceanic crust
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- Oceanic Crust Found beneath ocean floor Made of dense rock 4
miles thick Heavier than continental crust Causes sinking, which
leads to subduction Occurs when oceanic crust sinks beneath
continental crust (shown on right)
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- Mantle Largest layer of the Earth 1800 miles thick! Made up of
very hot, dense rock Movement occurs in this layer; materials flow
Convection currents Convection currents Convection currents Reason
for plate movement Huge temperature differences: Top is 1600
degrees F Bottom is 4000 degrees F Asthenosphere- the upper part of
the mantle Hot Rock flow
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- Outer Core Liquid melted iron and nickel 1400 miles thick Very
HOT: 4000-9000 degrees F. Responsible for the magnetic field that
protects Earth
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- Inner Core Solid ball of iron and nickel A lot of pressure
causes these elements to be pushed together. Hot 9000 degrees F 800
miles thick - smallest layer
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- Plate Tectonics Theory developed in the 1960s Explains movement
of the Earths plates in the lithosphere-crust and uppermost mantle
Move 2-10 cm per year Convergent Boundaries-plate collide Divergent
Boundaries-plates move apart Transform Boundaries-plates slide past
one another
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- Earthquakes Occur when the tectonic plates move past one
another or bump into each other Energy is stored up along these
plates, causing tension When tension and energy reach climax, the
plates snapEARTHQUAKE Releases seismic waves
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- Volcanoes A lot of pressure builds up in the mantle. This and
high temperatures can cause the surrounding rock to melt and turn
into magma. Built up magma travels through rock layers. Released
through the surface as lava Usually form along tectonic plate
boundaries
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- Mountains Can be formed in a variety of ways: Tectonic plate
crash into one another When a fault overlaps another rock, pushing
up surface. Magma stored up pushes the crust upward will eventually
erupt
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- Seismic Waves Seismic reflection Seismic refraction Mantle
Crust Continental crust Oceanic crust Core Seismogram Plate
tectonics Convection currents Faults Terms to Remember
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- Individual work Create a full page newspaper article using as
many of the terms provided as possible. Highlight terms. Show that
you understand the terms by what you put in the article Be
creative. Minimum of two images/diagrams. Organization Cite
resources on back of paper Have fun! DUE DATE: Monday, March 31
Newspaper Article Project
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- Directions: Click on this link. Read through the different
topics about the interior of the earth. This will be good review of
this PowerPoint. After doing that, click on the Questions tab and
answer the four questions. You can either print them out or write
them on a sheet of paper and turn them in to me with your newspaper
articles.
http://volcano.oregonstate.edu/vwdocs/vwlessons/lessons/Earths_lay
ers/Earths_layers1.html
http://volcano.oregonstate.edu/vwdocs/vwlessons/lessons/Earths_lay
ers/Earths_layers1.html Hyperlinked Assignment
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- http://4.bp.blogspot.com/-
swfMo5xKvM0/UApFnFaj8YI/AAAAAAAAMQQ/E9W2TK- JM8s/s1600/angkasa.jpg
http://www.geologicresources.com/seismic_reflection500x36 8.gif
http://quake.abag.ca.gov/wp-content/uploads/psdiag.jpg
http://chuma.cas.usf.edu/~juster/A2/first%20motion%20seis
mogram.gif
http://www.classroomatsea.net/general_science/plate_tectoni
cs/tectonics_intro.html
http://www.classroomatsea.net/general_science/plate_tectoni
cs/tectonics_intro.html
http://volcano.oregonstate.edu/vwdocs/vwlessons/lessons/E
arths_layers/Earths_layers1.html
http://volcano.oregonstate.edu/vwdocs/vwlessons/lessons/E
arths_layers/Earths_layers1.html
http://earthquake.usgs.gov/learn/kids/eqscience.php
http://www.discoverynews.us/DISCOVERY%20MUSEUM/P
rophecy/EARTHQUAKES/china-earthquake.jpg
http://www.discoverynews.us/DISCOVERY%20MUSEUM/P
rophecy/EARTHQUAKES/china-earthquake.jpg
http://www.csun.edu/~jao45194/volcano2.html References
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- http://education.nationalgeographic.com/rcplayer/?/edu/get_art
icle_rc_xml/41.xml?ar_a=1
http://education.nationalgeographic.com/education/encycloped
ia/crust/?ar_a=1 http://legacy-cdn-
assets.answersingenesis.org/assets/images/articles/nab/crust.jpg
http://gamediv1.weebly.com/inner-core.html
http://uclmagneticfields.weebly.com/uploads/1/4/2/8/14289716/1
355110899.jpg
http://i.dailymail.co.uk/i/pix/2011/05/19/article-1388697-
062A8E24000005DC-834_634x466.jpg
http://www.innercorestudios.com/images/InnerCoreLogo.jpg
http://fc01.deviantart.net/fs71/f/2013/162/d/c/volcano_diagram_
by_t_jackification-d68lmm1.png
http://fc01.deviantart.net/fs71/f/2013/162/d/c/volcano_diagram_
by_t_jackification-d68lmm1.pngReferences