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FORCES ON EARTH - Flipped Out Science with Mrs. Thomas!
FORCES ON EARTH - Flipped Out Science with Mrs. Thomas!

... The Mid-Atlantic Ridge is one of the world’s largest divergent plates, running North to South in just about the center of the Atlantic Ocean. All along this ridge, volcanic activity takes place and the sea floor is spreading East and West at a rate of ...
Earth`s magnetic field
Earth`s magnetic field

... field has changed thousands of times in the Phanerozoic (the last reversal was about 700,000 years ago). • These reversals appear to be abrupt (probably last 1000 years or so). ...
6.E.2.1-I will be able to summarize the structure of the earth
6.E.2.1-I will be able to summarize the structure of the earth

... 2. Which type of boundary and resulting feature of the Earth are illustrated in the diagram above? a. divergent and mountains b. divergent and rifts ...
Document
Document

... asthenosphere is like hot taffy 2. This allows plates to ride on top of hot, flowing rock. 3. Plates move because heat is being released from deep inside the earth. 4. Convection currents causes hot material to rise and expand (plates diverge) and cooler material to sink and contract (plates converg ...
PlateTectonics_001
PlateTectonics_001

... asthenosphere is like hot taffy 2. This allows plates to ride on top of hot, flowing rock. 3. Plates move because heat is being released from deep inside the earth. 4. Convection currents causes hot material to rise and expand (plates diverge) and cooler material to sink and contract (plates converg ...
Determining Earth`s Interior Structure
Determining Earth`s Interior Structure

... S waves – Shear or transverse (analogous to waves on a taut rope), can only travel through solid materials. S means secondary, because they travel less quickly. ...
Chapter 9 Class Notes
Chapter 9 Class Notes

... floor sinks below sea level.  It may fill with water to form a sea or lake. ...
StudentPlateTectonicsTest
StudentPlateTectonicsTest

... b. Theory of ______________________ drift = the Earth once had a single landmass that broke up into large pieces, which have since drifted apart i. ____________________________ = name for this giant landmass 1. Pangaea means “_____________________________” ii. ______________________________ (meteoro ...
Rubrics for Earth Stations
Rubrics for Earth Stations

... Rubric 1) Get a netbook and get on school website. Navigate to the folder “Constructive & Destructive Geologic Events” folder. Open the folder and read through the powerpoint. 2) Take notes on the powerpoint creating a list of constructive forces & destructive forces. Use a T-cart to organize your l ...
Science Planning Pag..
Science Planning Pag..

... • Recognizes that the mid-Atlantic ridge is the result of sea-floor spreading • Explains features of the Earth's surface using plate tectonic theory • Recognizes that most of the world's volcanoes are located along the pacific rim • Describes the structure of the geological time scale • Names the ch ...
Introduction and Tectonic Plates
Introduction and Tectonic Plates

... shistus on which we stood was yet at the bottom of the sea, and when the sandstone before us was only beginning to be deposited....An epoch still more remote presented itself, when even the most ancient of these rocks, instead of standing upright in vertical beds, lay in horizontal planes at the bot ...
Ch7 Jeopardy
Ch7 Jeopardy

... happens to the age of the rocks as the distance from the ...
Layers of the earth new
Layers of the earth new

... • Thinnest layer of the Earth that ranges from only 2 miles in some areas of the ocean floor to 75 miles deep under mountains • Made up of large amounts of silicon and aluminum • Two types of crust: oceanic crust and continental crust • Composed of plates on which the continents and oceans rest ...
gerography grade 7
gerography grade 7

... These boundaries are found in places where the plates are pulling apart or moving away from each other. This creates earthquakes and volcanoes. ...
Structure of the Earth Lithosphere System In this lecture we will learn
Structure of the Earth Lithosphere System In this lecture we will learn

... masses had the ability to move across the Earth's surface. ...
DeltaScience - Delta Education
DeltaScience - Delta Education

... (Possible answer: I do not think scientists can predict when an earthquake will happen. Thousands of earthquakes happen every day. If scientists could figure out which of those earthquakes we had to worry about, they would tell people to leave before they happened, as they do with hurricanes. Since ...
Constructive and Destructive Forces Notes and Activities
Constructive and Destructive Forces Notes and Activities

... 1. Chemical Weathering – the breakdown of rocks and minerals into smaller pieces by chemical action. The rocks breaks down at the same time as it changes chemical composition. The end result is different from the original rock. There are 3 types of chemical weathering: ...
earth`s history practice test
earth`s history practice test

... b. They are in the same stage of succession. c. They exist along the same line of latitude. d. They have the same climate today. 19. A scientist finds a fossil of the same organism in both India and Africa. These fossils provide evidence for which scientific theory below. a. Adaptation b. Continenta ...
Plate Tectonics
Plate Tectonics

... Another form of evidence that Wegener used to support his continental drift hypothesis was ancient climate patterns. When the continents are put together and we look at what was Pangaea, the remains of glacial matter match to form a pattern much like the large ice sheets that cover our poles today 4 ...
Earth`s largest environmental catastrophe 250 million years ago
Earth`s largest environmental catastrophe 250 million years ago

... They suggest that the Siberian mantle plume contained a large fraction of about 15 percent of recycled oceanic crust; i.e. the crust that had long before been subducted into the deep mantle and Large Igneous Provinces (LIPs) are huge then, through the hot mantle plume, brought back accumulations of ...
Plate Tectonics
Plate Tectonics

...  What was so unusual about the fossil remains of Mesosaurus?  How did clues found in South Africa and Arctic islands support Wegener's theory of continental drift?  Why wasn't Wegener's theory accepted at the time? ...
LAB-AIDS Correlations for NEXT GENERATION SCIENCE
LAB-AIDS Correlations for NEXT GENERATION SCIENCE

... over their life cycle, produce elements. [Clarification Statement: Emphasis is on the way nucleosynthesis, and therefore the different elements created, varies as a function of the mass of a star and the stage of its lifetime.] [Assessment Boundary: Details of the many different nucleosynthesis path ...
narrative-for-class-journey-to-the-centre-of-the-earth
narrative-for-class-journey-to-the-centre-of-the-earth

... typical plate tectonic velocities – about 2-10 cm/year, from the collision zone at the surface into the mantle. Therefore, these slabs formerly were near the Earth’s surface. Because the slabs remain cooler than the surrounding mantle for tens of millions of years, deep earthquakes occur within or a ...
File - Ms. D. Science CGPA
File - Ms. D. Science CGPA

... Plate Tectonics- Course 2 ...
2017-Earth Forces-Study Guide and Web Quest
2017-Earth Forces-Study Guide and Web Quest

... massive pieces of the earth's crust interact. If you know about the movements taking place at a plate boundary, you can often predict what's likely to occur in the future! 14. Click on “See What Happens at Different Plate Boundaries” and read the information provided. Click on the diagram labels to ...
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Spherical Earth



The concept of a spherical Earth dates back to around the 6th century BC, when it was mentioned in ancient Greek philosophy, but remained a matter of philosophical speculation until the 3rd century BC, when Hellenistic astronomy established the spherical shape of the earth as a physical given. The paradigm was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages. A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's expedition's circumnavigation (1519−1522).The concept of a spherical Earth displaced earlier beliefs in a flat Earth: In early Mesopotamian mythology, the world was portrayed as a flat disk floating in the ocean and surrounded by a spherical sky, and this forms the premise for early world maps like those of Anaximander and Hecataeus of Miletus. Other speculations on the shape of Earth include a seven-layered ziggurat or cosmic mountain, alluded to in the Avesta and ancient Persian writings (see seven climes).The realization that the figure of the Earth is more accurately described as an ellipsoid dates to the 18th century (Maupertuis).In the early 19th century, the flattening of the earth ellipsoid was determined to be of the order of 1/300 (Delambre, Everest). The modern value as determined by the US DoD World Geodetic System since the 1960s is close to 1/298.25.
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