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Plate Tectonics
Plate Tectonics

... Oldest rocks are ~ 4 billion years old Found in the Northwest Territories ...
Chp 12.1- Evidence for Continental Drift
Chp 12.1- Evidence for Continental Drift

... • There were matching GEOLOGICAL FEATURES and rocks on DIFFERENT continents. • There were matching FOSSILS, like Mesosaurus, on different continents. ...
Plate Tectonics Crossword - www .alexandria .k12 .mn .us
Plate Tectonics Crossword - www .alexandria .k12 .mn .us

... 6. The most outer solid portion of the planet Earth. ...
Class Starter
Class Starter

... What makes the plates of the crust move? ...
of the same age is form in southern Africa, South America, India, and
of the same age is form in southern Africa, South America, India, and

... Appalachian Mountains, the British Isles, and Caledonian Mountains all have similar age, composition, and structure. Comparing the image below on the left, to the image on the right, if North America, Europe, and Africa are reassembled, these mountain ranges form a continuous mountain range. ...
IntrotoPlateTectonicTheory
IntrotoPlateTectonicTheory

... You probably wouldn't recognize the Earth if you could see it 225 million years ago. Back then, all the major continents formed one giant supercontinent, called Pangaea. Perhaps initiated by heat building up underneath the vast continent, Pangaea began to rift, or split apart, around 200 million yea ...
Unit 4 Chapter
Unit 4 Chapter

... together and have since moved away from each other. According to Wegener, the super continent started breaking up about 200 million years ago. Fossil Evidence Wegener found similarities in the coastlines of the continents, and he found other evidence as well. He found identical fossils of the ______ ...
Continental Drift
Continental Drift

... America, Australia and India. ...
Directed Reading
Directed Reading

... Directed Reading continued ______ 33. What causes a supercontinent to break apart? a. Heat inside Earth causes rifts to form in the supercontinent. b. The convergent boundary between two continents becomes ...
Naked Science Colliding Continents
Naked Science Colliding Continents

... 16. How did the Alps and the Himalayas form? ...
Pangaea CC Reading
Pangaea CC Reading

... over  whelming  evidence,  it  became  clear  that  at  some  point  many  millions  of  years  ago,   these  continents  must  have  in  fact  been  connected.     Scientists  now  believe  that  about  250  million  years  ago,  a ...
Continental Drift - Tolland High School
Continental Drift - Tolland High School

... example, is currently moving northwest at a little over an inch (three centimeters) per year. On the other hand, Antarctica is hardly moving. About 270 million years ago, nearly all the land on Earthformed one enormous continent called Pangea. This “supercontinent” began to break apart about 200 mil ...
continental-drift
continental-drift

... and D are indicated by shaded rectangles. ...
Plate Tectonics Crossword
Plate Tectonics Crossword

... It is more 'plastic' than the lithosphere so it is easier to bend and move. ...
Plate Tectonics - Awtrey Middle School
Plate Tectonics - Awtrey Middle School

... …because of sea-floor spreading! Two oceanic plates pull apart, magma rises through the gap in the middle, the magma cools and forms new seafloor. Continents are connected to the sea-floor. When the seafloor moved, so did the continents! ...
Document
Document

... 24. Ice covered most of Earth when all the continents were located near ______________________________________________________________ . 25. What caused Earth’s temperatures to change and its ice sheet to melt? _______________________________________________________________ 26. What happens to popul ...
10-3 Directed Reading
10-3 Directed Reading

... 24. Ice covered most of Earth when all the continents were located near ______________________________________________________________ . 25. What caused Earth’s temperatures to change and its ice sheet to melt? _______________________________________________________________ 26. What happens to popul ...
Plate Tectonics Crossword - Science
Plate Tectonics Crossword - Science

... the planet Earth. 8. The outer part of the Earth's crust. it is composed of solid rock. ...
Plate Tectonics Crossword
Plate Tectonics Crossword

... the planet Earth. 8. The outer part of the Earth's crust. It is composed of solid rock. ...
plate tectonics crossword
plate tectonics crossword

... the planet Earth. 8. The outer part of the Earth's crust. it is composed of solid rock. ...
Chapter 12 Thermal Energy Transfer Drives Plate Tectonics 12.1
Chapter 12 Thermal Energy Transfer Drives Plate Tectonics 12.1

... climates, (eg. Such as ___________________) on warm continents. Act. 12-1C – Piecing Together Pangaea 2. How Can Continents Move? • Wegener’s evidence for continental drift did ___________________  New scientific equipment _________________.  It was noted that ___________________ appear in certain ...
Plate Tectonics
Plate Tectonics

... Plate Tectonics Lithosphere ...
Plate Tectonics Unit(poster)
Plate Tectonics Unit(poster)

... Discovery of Plate Tectonics ...
Continents Adrift: An Introduction to Continental Drift and Plate
Continents Adrift: An Introduction to Continental Drift and Plate

... 2. What did scientist Alfred Wegener call the large supercontinent that once existed? a. Eurasia b. Panamerica c. Pangaea d. Ring of Fire 3. Which of these pieces of evidence did Wegener use to support his theory of continental drift? a. Subduction zones b. Divergent boundaries c. Seafloor spreading ...
Continental Drift - sciencewithskinner
Continental Drift - sciencewithskinner

... ocean that surrounded Pangaea. ...
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Geological history of Earth



The geological history of Earth follows the major events in Earth's past based on the geologic time scale, a system of chronological measurement based on the study of the planet's rock layers (stratigraphy). Earth formed about 4.54 billion years ago by accretion from the solar nebula, a disk-shaped mass of dust and gas left over from the formation of the Sun, which also created the rest of the Solar System.Earth was initially molten due to extreme volcanism and frequent collisions with other bodies. Eventually, the outer layer of the planet cooled to form a solid crust when water began accumulating in the atmosphere. The Moon formed soon afterwards, possibly as the result of a Mars-sized object with about 10% of the Earth's mass impacting the planet in a glancing blow. Some of this object's mass merged with the Earth, significantly altering its internal composition, and a portion was ejected into space. Some of the material survived to form an orbiting moon. Outgassing and volcanic activity produced the primordial atmosphere. Condensing water vapor, augmented by ice delivered from comets, produced the oceans.As the surface continually reshaped itself over hundreds of millions of years, continents formed and broke apart. They migrated across the surface, occasionally combining to form a supercontinent. Roughly 750 million years ago, the earliest-known supercontinent Rodinia, began to break apart. The continents later recombined to form Pannotia, 600 to 540 million years ago, then finally Pangaea, which broke apart 180 million years ago.The present pattern of ice ages began about 40 million years ago, then intensified at the end of the Pliocene. The polar regions have since undergone repeated cycles of glaciation and thaw, repeating every 40,000–100,000 years. The last glacial period of the current ice age ended about 10,000 years ago.
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