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Quiz # 1 Chapters 1 and 2
Quiz # 1 Chapters 1 and 2

... 3. Preparing descriptive diagrams of isolated rock outcrops and their fossils is called measuring section. These are useful in determining equivalence in age of sediments, a process called _________________. 4. A fault that cuts across sediments is ____________ than the sediments. 5. Whenever we see ...
Igneous Rocks - Skyline R2 School
Igneous Rocks - Skyline R2 School

... One of the most common kinds of igneous rocks is granite ...
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Plate Tectonics Homework Packet

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117 Ways to Pass the Earth Science Regents

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What do you know about earthquakes and volcanoes?

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science 6 topic 4 - Stillwater Christian School
science 6 topic 4 - Stillwater Christian School

... Some problems with the plate tectonic theory 2. “Scrapings” at the subduction zones are nonexistant Evidence of accumulated sea ...
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Chapter 14 Geology and Earth Resources

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Chapter 1 Section 2
Chapter 1 Section 2

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Inside the Earth

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Changes Within the Earth
Changes Within the Earth

... 1. theory that suggests the earth is not one solid sheet of rock 2. instead, it’s broken into a number of moving plates 3. the plates vary in size and thickness 4. the earth’s oceans and continents ride atop the plates as they move in different directions 5. most earthquakes, volcanoes, & other geol ...
Name
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... The density of a substance can be measured using the unit of grams per cubic centimeter, or g/cm3. The density of the core is about 10 to 13 g/cm3. The density of the mantle is about 3.3 to 5.7 g/ g/cm3. Which is the BEST estimate for the density of the crust? ...
4/19/11 1 - CSUN.edu
4/19/11 1 - CSUN.edu

The Earth - Humble ISD
The Earth - Humble ISD

... _______________ – soft layer of molten rock (magma) Crust – thin layer of rock on earth’s surface Continental Drift – __________________ first presented the theory. He claimed that in Earth’s early existence there was only one body of land, ______________. That supercontinent then slowly split and s ...
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Planet Earth Vocabulary

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Grade 6 Curriculum Map - Bibb County School District

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Geosphere PP

... •  Scien4sts  use  seismic  waves  to  learn  about  Earth’s   interior  (waves  altered  by  the  material  it  travels  through)   •  Measure  changes  in  the  speed  and  direc4on  of  seismic   waves  that  penetrate  the  interior   ...
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PowerPoint Presentation - Introduction to Earthquakes EASA

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Essay- choose ONE

...  Age of rocks (core samples) ___________________  Fossil clues ___________________ KEY TERMS  ___The theory that states all continents were once a part of one giant landmass, split apart and slowly moved to there present positions.  ___The theory that Earth’s crust and upper mantle is broken up ...
The History of the Earth
The History of the Earth

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jeopardy review

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Practice08k
Practice08k

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EARTH LANDFORMS OF GEORGIA (Constructive and Destructive
EARTH LANDFORMS OF GEORGIA (Constructive and Destructive

... processes that are continuously shaping our ever changing Earth. Students will explore places like where glaciers are found, the Ring of Fire, the San Andreas Fault, and the ocean floor. In this unit of study, the students will explain what constructive and destructive forces are at work, how those ...
layers of earth hw2
layers of earth hw2

... 4. Page 15 of your Ref. Tables gives you the equatorial diameter of the Earth. Show how you can use this to check your answer to number 3. ...
The History of Life
The History of Life

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Lessons 4 and 5 Vocabulary
Lessons 4 and 5 Vocabulary

... Lesson 5 Continued Lithosphere – the cool, solid outer shell of the earth. It consists of the crust and the rigid uppermost part of the mantle and is broken up into segments, or plates. Mantle – the layer of the earth beneath the crust. It is about 2900 km thick, and it makes up about 83 percent 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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