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Chapter 4 Lesson 1 Plate Tectonics
Chapter 4 Lesson 1 Plate Tectonics

... Subduction – when one tectonic plate can sink under another platecrust gets recycled back into the mantle ...
Layers of the Earth Lyrics and Diagram
Layers of the Earth Lyrics and Diagram

... The mantle layer is the largest of the class. About half of our planet’s mass. The mantel is composed of very hot dense rocks, That move and flow, always on the go, they never lock, Never stop, and they’re responsible for tectonic shift Please believe the Earth’s plates are adrift It’s pretty thick ...
Geology Notes - My Teacher Pages
Geology Notes - My Teacher Pages

... into smaller pieces, transported, and deposited into a body of water, pressed together, forming layers – Sandstone – limestone ...
Earth History Study Guide Answers are in RED 1) How has scientific
Earth History Study Guide Answers are in RED 1) How has scientific

... Earth History Study Guide Answers are in RED 1) How has scientific understanding of Earth’s past changed with time? We used to think that the world was dominated by larger catastrophic events (catastrophism), but now we think that Earth’s history has been dominated by the same small changes and caus ...
Introduction - Winthrop Chemistry, Physics, and Geology
Introduction - Winthrop Chemistry, Physics, and Geology

... Mathematics Computer Science ...
File
File

... 9. Compared to rocks in the Earth’s crust, rocks in the mantle are more what? a. Mineral-rich b. Light c. Dense 10. What are tectonic plates? a. Pieces of the lithosphere that move on top of the asthenosphere b. Broken pieces of rocks that have been weathered away over time c. Small mineral fragment ...
EARTH-2
EARTH-2

... the surface on which we are living. Compared to the other layers the crust is much thinner. It floats upon the softer, denser mantle. The crust is made up of solid material but this material is not the same everywhere. There is an Oceanic crust and a Continental crust. The first one is about 4-7 mil ...
Landforms
Landforms

... Forces below Earth’s Surface • Geology- the study of Earth’s physical structures and the processes that have created them • Forces below Earth’s surface are key to shaping landforms • Four important zones in Earth’s Interior – Core-Center: like a nuclear furnace, divided into inner(solid) and outer ...
The Dynamic Earth
The Dynamic Earth

... •Green house gases trap heat near Earth’s surface just the way windows of a car trap heat in the car. •Without the Greenhouse effect, Earth would be too cold for life. ...
Section 1.0 Practice Test
Section 1.0 Practice Test

... Volcanoes can cool temperatures around the world. Despite the hot temperatures and the destruction they can create at the source, the lowering of world temperatures following a volcanic eruption can be caused by ... a rapid lava flow into the ocean an ash plume causing mudflows an ash layer in the a ...
How The Earth Works
How The Earth Works

... 35 minutes to birth of Christ 1 hour+ to pyramids 3 hours to retreat of glaciers from Wisconsin 12 days = 1 million years 2 years to extinction of dinosaurs 14 years to age of Niagara Escarpment 31 years = 1 billion years ...
DOC - The Camphor Tree
DOC - The Camphor Tree

... El Nino is a warm current in the Pacific Ocean which appears in some years but not in others. When it appears, it can change weather patterns all over the world, making some areas dry and others wet. ...
Define: Acid rain. Define: Biome. Define: El Niño Name and describe
Define: Acid rain. Define: Biome. Define: El Niño Name and describe

... El Nino is a warm current in the Pacific Ocean which appears in some years but not in others. When it appears, it can change weather patterns all over the world, making some areas dry and others wet. ...
Earth structure & magnetism
Earth structure & magnetism

... • So what? When liquid rock on/in the crust cools, iron containing minerals will line up with the magnetic field lines of the earth.  Parallel to Earth magnetic field lines.  Just like the the metal pieces on the demo ...
Earth`s internal structure and materials
Earth`s internal structure and materials

... 2. Draw and label a diagram of Earth’s interior that distinguishes the core, mantle, continental crust and oceanic crust and indicates the density and composition of each. 3. Describe how Earth’s lithosphere differs from its asthenosphere in composition, temperature and strength (rigidity) and how t ...
Composition and Internal Structure of Earth
Composition and Internal Structure of Earth

... It is probably a valid assumption that the chemical composition of such meteorite is very similar to the composition of the Earth. Earth „ Then, which element is enriched or depleted in the crust/mantle? „ Furthermore, what would be the composition of the Earth’s core? ...
The Dynamic Earth Section 1 Erosion
The Dynamic Earth Section 1 Erosion

... scoured by running water, which moves rocks around and changes their appearance. • Chemical weathering is the process in which the materials of Earth’s surface are loosened, dissolved, or worn away. Erosion transports the materials form one place to another by a natural agent, such as wind, water, i ...
Position of the continents
Position of the continents

... together • Look at your map of the world again, which continents seem as if they fit together well? ...
GEOSPHERE The geosphere is the Earth itself, the rocks, minerals
GEOSPHERE The geosphere is the Earth itself, the rocks, minerals

... Additionally, advances in geothermal technology will enable us to harness greater amounts of heat energy within the crust, which can be converted to electricity at the surface. ...
91 Important Earth Science Facts
91 Important Earth Science Facts

... 14. The closer isolines (contour-isobar-isotherm) are, the steeper the slope or gradient. 15. The earth rotates west to east (24 hours). 16. The earth revolves counterclockwise (365¼ days). 17. All celestial objects APPEAR to move to the west. When facing NORTH, they appear to go counter-clockwise a ...
Michelle Mindick
Michelle Mindick

... The   final,   significant   contributor   to   Earth’s   ever-­‐changing   topography   is   the   result   of   various   processes   of   gradation.   As   earthquakes,   volcanoes,   and  impact   craters  break   up   and   reform   Earth’s ...
“Milk Chocolate Movement” worksheet
“Milk Chocolate Movement” worksheet

... temperature and pressure zones within the earth’s crust and mantle, and eventually causes the rock to become molten magma. New sources of volcanic or intrusive igneous rocks can form from the material to begin another process in the rock cycle. ...
Chapter 17 - Heritage Collegiate
Chapter 17 - Heritage Collegiate

... P and S waves. P waves travel faster than S waves so they will take different times for each to pass through the earth. However, the time it takes them to travel through the earth also depends on the type of rock material the waves pass through. Therefore any time difference in the arrival of P and ...
Introducing Geology
Introducing Geology

... • Each system is shaped by a related set of processes and parts. • They are closely connected and interact with one another. • This means that a change in one system can cause a change in another. ...
Powerpoint Review
Powerpoint Review

... Changing Seasons If we are closer in January than in July, why is it that we have are coldest days of the year during this time? • Earth’s tilted axis combined with the revolution causes seasons to change ...
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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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