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Earth Layer`s PPT
Earth Layer`s PPT

... • Crust and Lithosphere- rigid outer layer • Mantle and Asthenosphere- solid rock that flows slowly (like hot asphalt) • Outer Core- liquid layer • Inner Core- solid, very dense ...
CRT Science Review #10 Earth Science: Earth`s
CRT Science Review #10 Earth Science: Earth`s

... processes. These processes can be constructive or destructive and occur over geologic time scales. Indicators & Item Specifications: E.8.C.1 Students know sedimentary rocks and fossils provide evidence for changing environments and the constancy of geologic processes. E/S • Understand why most fossi ...
Earth`s Layers Unit Study Guide 1) List Earth`s layers in order from
Earth`s Layers Unit Study Guide 1) List Earth`s layers in order from

Name
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... and drifted to their present locations. A scientist named Alfred Wegener came up with the theory in the early 1900’s. What is Pangea? (p. 199) ...
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Continental Drift

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Reading Guide for Ch1, Interlude D
Reading Guide for Ch1, Interlude D

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The Study of Space Week 2 PPT
The Study of Space Week 2 PPT

... warmer from November to February. This is because at this time the southern half of the planet is tilted towards the Sun. It is cooler during the rest of the year when the northern half of the planet is tilted towards the Sun. ...
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study guide – unit 9 – plate tectonics

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Plate Tectonics: Earth`s Plates and Continental
Plate Tectonics: Earth`s Plates and Continental

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what to know outline dynamic crust ig met rocks

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Plate Tectonics Study Guide

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Inside the Earth

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Deepest Place on Earth film worksheet

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Inside the Restless Earth
Inside the Restless Earth

... a. Seismic waves are ……vibrations that travel through the Earth. Caused by earthquakes b. Seismic waves travel at different___speeds_______ depending on…. the density and strength of the material they travel through. Seismologists use these speeds to calculate the density and thickness of Earths lay ...
REVISED EXAM 3 STUDY GUIDE – PHYSICAL GEOGRAPHY
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... a. Along the mid-ocean ridges b. Around the Pacific Ring of Fire c. In California d. In the Appalachians ...
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Plate Tectonics Vocabulary Terms

... fragments of lithosphere move toward one another and collide. As a result of pressure, friction, and plate material melting in the mantle, earthquakes and volcanoes are common near convergent ...
Ltihosphere, atmosphere, hydrosphere
Ltihosphere, atmosphere, hydrosphere

... • The geologic time scale is a chronologic schema (or idealized model) relating to time that is used by geologists, paleontologists and other earth scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ...
Get out your pieces for Tectonicland Have your HOMEWORK out
Get out your pieces for Tectonicland Have your HOMEWORK out

... Answer these questions in your notebook: ...
9th grade ch 3 notes simplified..
9th grade ch 3 notes simplified..

... subduction zone and a trench.  If both are continents, the rock will fold, fault, and lead to mountain-building – like the Himalayas! 2. Transform: 2 plates slide past each other – like at the San Andreas fault. 3. Divergent: This causes a rift – new crust that forms from the center of a “break” in ...
“I Can” Statement Template
“I Can” Statement Template

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The Layer`s Of The Earth!
The Layer`s Of The Earth!

... or the liquid layers of the earth. It pushes and pulls the rock it moves through just like sound waves push and pull the air. ...
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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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