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WELCOME BACK! - Year 6 and 7 Mathematics, Science and
WELCOME BACK! - Year 6 and 7 Mathematics, Science and

... The Theory of Continental Drift: Continental Drift – The continents have not always been in their present positions, but have drifted to these locations over millions of years. ...
Pixelgost`s Dynamic Planet test
Pixelgost`s Dynamic Planet test

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Geo rev 1 (intro)
Geo rev 1 (intro)

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Inside the Earth - ReedEarthScience
Inside the Earth - ReedEarthScience

... – Why? Heat left over from formation of planet and radioactive substances inside Earth’s interior releasing energy ...
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Earth Science

... 3. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary. 4. A deep valley that forms where two plates move apart. 5. A plate boundary where two plates move away from each other. 6. A rigid layer made up of the uppermost part of ...
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... – the putty-like layer of the mantle that the tectonic plates float on. ...
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2-2 science notebook worksheet

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Ring of Fire - Leigh
Ring of Fire - Leigh

... Date: __________________________ Period: ___________ ...
Plate Tectonics
Plate Tectonics

... “Plate Tectonics” after mapping the ocean floor. He discovered that the Atlantic gets larger each year. ...
CHICXULUB CRATER - University of Colorado Boulder
CHICXULUB CRATER - University of Colorado Boulder

... broader scale, the boundary between the Mesozoic and Cenozoic eras. ...
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THE INNER PLANETS

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Landforms - Rankin County School District / Homepage
Landforms - Rankin County School District / Homepage

... • Three types of movement at plate boundaries – Spread, Collide, Move Laterally • Spreading: crust stretches until it breaks; creating rift valleys and oceanic ridges • Collide: Found on ocean floors and continental edges; On ocean floors colliding creates trenches. On continental boundaries, collid ...
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DR Fossil Record

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Earth: Yesterday, Today, and Tomorrow
Earth: Yesterday, Today, and Tomorrow

... Please use your science student journal and glossary to study for your test on Thursday, April 3rd. Layers of the Earth: Refer to page 5 What are the 3 layers of the Earth? What makes up the different layers? Ex: Crust: mostly granite Earth as a Giant Magnet: Refer to pages 18-21 What causes Earth t ...
The Land Beneath Our Feet (Geology) Vocabulary
The Land Beneath Our Feet (Geology) Vocabulary

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Name: June Proficiency Exam Study Guide 7th Grade Science

... Theory of Plate Tectonics? Wegener’s hypothesis stated that the continents have slowly moved to their current locations. Wegener’s hypothesis was rejected because he could not provide a reason as to how the continents move. His hypothesis was finally approved after the concept of sea-floor spreading ...
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... 1. Why is it difficult to determine Earth’s inner structure? 2. What is the difference between the lithosphere and the asthenosphere? 3. How do temperature and pressure change as you go deeper into the Earth? 4. How are oceanic and continental crusts alike and different? 5. Place these terms in corr ...
Ch 8 Archean
Ch 8 Archean

... Monomer and Proteinoid Soup  The origin-of-life experiments are interesting, but what is their relationship to early Earth?  Monomers likely formed continuously and by the billions and accumulated in the early oceans into a “hot, dilute soup” (J.B.S. Haldane, British biochemist)  The amino acids ...
Earth Science PPT
Earth Science PPT

... • Resources, their origins, and how we classify them. • Layers of soil, rocks, and minerals. • Types of fossils, rocks, tree rings and other ways we can investigate “what happened before”. ...
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... that rises from Earth’s interior  Usually near plate division or collision  Can be on land or under water  Under water may lead to island formation ...
section 1 - image identification
section 1 - image identification

...  The catastrophic earthquake that hit Izmit, Turkey on August 17, 1999 – which claimed the lives of over 18,000 people – was caused by movement of a nearby ________.  Does mountain glaciation tend to produce smooth, rounded mountain peaks?  Do meandering rivers make stable and unchanging boundari ...
Earth Science 4
Earth Science 4

... suggesting that Earth continents are moving. – Animal Fossils – Plant Fossils – Landforms • BUT is that good enough? What do you think? • Be a SKEPTIC, discuss other explanations for these so called pieces of evidence. ...
Document
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... Volcanism ...
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History of Earth



The history of Earth concerns the development of the planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to the understanding of the main events of the Earth's past. The age of Earth is approximately one-third of the age of the universe. An immense amount of biological and geological change has occurred in that time span.Earth formed around 4.54 billion years ago by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere, but it contained almost no oxygen and would have been toxic to humans and most modern life. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. One very large collision is thought to have been responsible for tilting the Earth at an angle and forming the Moon. Over time, the planet cooled and formed a solid crust, allowing liquid water to exist on the surface.The first life forms appeared between 3.8 and 3.5 billion years ago. The earliest evidences for life on Earth are graphite found to be biogenic in 3.7-billion-year-old metasedimentary rocks discovered in Western Greenland and microbial mat fossils found in 3.48-billion-year-old sandstone discovered in Western Australia. Photosynthetic life appeared around 2 billion years ago, enriching the atmosphere with oxygen. Life remained mostly small and microscopic until about 580 million years ago, when complex multicellular life arose. During the Cambrian period it experienced a rapid diversification into most major phyla. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.Geological change has been constantly occurring on Earth since the time of its formation and biological change since the first appearance of life. Species continuously evolve, taking on new forms, splitting into daughter species, or going extinct in response to an ever-changing planet. The process of plate tectonics has played a major role in the shaping of Earth's oceans and continents, as well as the life they harbor. The biosphere, in turn, has had a significant effect on the atmosphere and other abiotic conditions on the planet, such as the formation of the ozone layer, the proliferation of oxygen, and the creation of soil.
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