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`I. True/False Questions: circle a “T” for true or “F” for false (10% total
`I. True/False Questions: circle a “T” for true or “F” for false (10% total

... 1. (T F) James Hutton created the theory of evolution. 2. (T F) The fundamental structure of silicate minerals is built upon the silicon-oxygen tetrahedron (SiO4). 3. (T F) After a theory has survived much scientific scrutiny, it may be elevated to hypothesis status. 4. (T F) Convergent plate tecton ...
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What have earthquakes to do with the Earth`s climate?

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The surface of Earth is made of several pieces, called plates, that

... Like cars in a demolition derby, pieces of Earth’s surface are skidding around, sideswiping each other, smashing into each other, or ripping apart from each other. All this movement takes place in slow motion most of the time, so you will not notice it—unless there’s an earthquake! This exciting fea ...
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Science 4th 9 weeks

...  Major geologic events that occur over eons or brief moments in time continually shape and reshape the surface of the Earth, resulting in continuous global change.  The cosmos is vast and explored well enough for us to know its basic structure and operational principles.  All life is interdepende ...
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Using Google Earth to Explore Strain Rate Models - SERC
Using Google Earth to Explore Strain Rate Models - SERC

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Captain Curiosity - Curiosity Zone of Ashburn VA

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Name: _________________________ Period: ______ Date

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PPT - Hss-1.us

... 1,800 miles (2,900 km) below sea level. The boundary between the earth’s crust and mantle Mohorovicic discontinuity or “Moho.” • There are several overlapping divisions used to describe layers within the Mantle: • (1) Upper Mantle is solid. Similar to the crust but the minerals that make up the rock ...
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Midterm Possible Essay Questions

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Chapter 6, Rocks and Minerals Lesson 2, Earth`s Changing Crust

... Convection cells in the mantle flow like a liquid. The mantle is always in motion. It rises and pushes against the bottom of the crust. This movement causes the thin, brittle crust at the surface to break into pieces, or plates. The plates move along Earth’s surface. Earthquakes and the slow motion ...
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Earth`s Structure Model Activity

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Ecology

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Chapter 14 - Earth`s Interior

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Plate Tectonics Review & The Rock Cycle (11/3)
Plate Tectonics Review & The Rock Cycle (11/3)

... Tsunami, tidal wave: generated when part of the ocean floor suddenly rises or drops. Usually occurs offshore in subduction zones. Detection of tsunamis: by ocean buoys, pressure recorders on the ocean floor which measures changes in water pressure as the waves pass over it; data relayed via satellit ...
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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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