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Seismic Waves Webquest - Dublin City Schools Dashboard
Seismic Waves Webquest - Dublin City Schools Dashboard

... 1.   Go   to     http://aspire.cosmic-­‐ray.org/Labs/SeismicWaves/       you   can   also   access   this   website  in  the  resources  section  of  this  lesson.     2.    Spend  1-­‐2  minutes  playing  with  the  Mighty  Wave  Make ...
460:102 Notes Historical Geology Notes
460:102 Notes Historical Geology Notes

... d. Alluvial rocks topped the sequences, sand, gravel, clay, peat, ash Neptunism was appealing because it was consistent with the biblical account of the creation. Young Earth - 6000 yrs. old. Problems - where did the water go? Same origin for basalt as for shales, limestones etc. J.F. D’Aubisson de ...
Slide 1 - MisterSyracuse.com
Slide 1 - MisterSyracuse.com

... before making your response, and make sure that whatever you write answers every part of the question. Do not leave any blank questions or naked numbers. Blank questions will be marked off at twice the rate of a wrong answer. Relax, good luck, and enjoy! 0. What is the purpose of meaning? ...
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Course Outline and General Information

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Benchmark 3 Science Study Guide S6E5 A
Benchmark 3 Science Study Guide S6E5 A

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The formation of mountains 1) Fold mountains Complete

... _____________ mountains are created when two of the Earth’s plates move _________________. This bends the rocks. An example of a ________________ mountain is _____________________________. ...
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Plate Tectonics Vocabulary

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Practice Questions: Earth`s Interior

... 14. Base your answer to the following question on cross section below, which shows an underwater mountain range in the Atlantic Ocean. The oceanic bedrock is composed mainly of basalt. Points X and Y are locations in the bedrock that have been diverging at the same rate. The movement of the North A ...
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Planet Earth - Manasquan Public Schools
Planet Earth - Manasquan Public Schools

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Ch. 7 - Department of Physics and Astronomy
Ch. 7 - Department of Physics and Astronomy

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Inside Earth: Earth*s Interior - 7-8WMS

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... • Another aspect of the theory of plate tectonics, is that it indicates that the continents of Earth’s crust move (relative to the main body of Earth) and change shape with time. • This explains the similarity of extinct animal and plant fossils on adjacent continents (such as South America and Afri ...
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Chapter 5 Notes: Plate Tectonics Earth’s Interior Direct

...  These rocks only form when molten material cools  quickly o Magnetic strips  The earth’s magnetic poles have reversed many times  Evidence in the rocks on the ocean floor o Drilling Samples  The samples far from the ridge are older  The “youngest” rocks near the center of the ridge ...
Earthquakes, Volcanoes & The Ring of Fire
Earthquakes, Volcanoes & The Ring of Fire

... b. The second way volcanoes can form is when an oceanic plate collides with a continental plate. The older and denser oceanic plate subducts, or sinks below the less dense plate. Rock in and above the sinking plate melts, forming chambers of magma that erupt. ...
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Unit 7 Review Because of the weight of the rock above, pressure
Unit 7 Review Because of the weight of the rock above, pressure

... satisfactory explanation for the force that pushes or pulls the continents. Pg 330 23. At the ________ ____________ , molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. Pg 333 24. The process that continually adds ne ...
NAME - Thomas C. Cario Middle School
NAME - Thomas C. Cario Middle School

... swaying motion? Surface 21.) Which wave can go through the core? Primary 22.) Which wave goes through the mantle, but is blocked by the liquid outer core? Secondary 23.) What happens to p-waves when they enter the liquid outer core? Bend and Slow down S-Waves? They don’t enter the Outer Core 24.) Wh ...
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... Neptunism: rocks form from crystallization in the early earth’s oceans James Hutton (1726 – 1797) “present is the key to the past” – Uniformitariansim Uniformitariansim: geologic process creates and destroys rock. Studied rock exposures, showed how rocks could form by slow geologic process Recognize ...
NOTES Plate Tectonics
NOTES Plate Tectonics

... 12. The Pacific Ocean is shrinking and the Atlantic Ocean is expanding. 13. The three kinds of plate boundaries are: a. Transform - where two plates slip past each other in opposite directions. b. Divergent - where two plates move apart (mid-ocean ridge). c. Convergent - where two plates come toget ...
A Core Sample of Planet Earth I
A Core Sample of Planet Earth I

... 6. Use pages 391-392 in your book to put a very brief description of the composition/structure of each layer. Write words or phrases (not sentences). Include whether it is mostly rock or metal, the state of matter, and other important qualities (such as “rigid” for lithosphere and “weak, soft, flow ...
KEY for Tectonics Study Guide #1
KEY for Tectonics Study Guide #1

... 3. Describe how technology was used to prove that the predictions of the “Shrinking Earth Theory” were incorrect. -seismographs: seismographs showed earthquakes mostly occur at the edges of ...
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Age of the Earth



The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.
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