Astronomy Test - The Summer Science Safari Summer Camp
... 16. A ____ forms when the leftovers of a supernova are so massive that they collapse to form a dense object whose gravity is so strong that light cannot escape it. Plate Tectonic 17. Why is the Plate Tectonic Theory a better theory than the Continental drift Theory? 18. If new crust is being created ...
... 16. A ____ forms when the leftovers of a supernova are so massive that they collapse to form a dense object whose gravity is so strong that light cannot escape it. Plate Tectonic 17. Why is the Plate Tectonic Theory a better theory than the Continental drift Theory? 18. If new crust is being created ...
GEO142_mid_term_II_s..
... What are the steps in the scientific method? Could you give an example of the scientific method? Could you tell what step you are in given some information? What is a force? What is stress? What is strain? What are the three types of stress and strain? What is elastic? What is plastic? Plate Tec ...
... What are the steps in the scientific method? Could you give an example of the scientific method? Could you tell what step you are in given some information? What is a force? What is stress? What is strain? What are the three types of stress and strain? What is elastic? What is plastic? Plate Tec ...
Forces in Earth`s Crust Objectives After completing
... After completing the lesson, I will be able to: • 1) explain how stress in the crust changes Earth’s surface • 2) describe where faults are usually found and why they form • 3) identify the land features that result from plate movement ...
... After completing the lesson, I will be able to: • 1) explain how stress in the crust changes Earth’s surface • 2) describe where faults are usually found and why they form • 3) identify the land features that result from plate movement ...
Grand Challenges for Seismology
... core? The thermal evolution of the Earth, the driving forces of plate tectonics, and the generation of the magnetic field all involve convective flow in the mantle and core. Improving the seismological resolution of deep structure as data accumulate and as new analysis methods are developed will hel ...
... core? The thermal evolution of the Earth, the driving forces of plate tectonics, and the generation of the magnetic field all involve convective flow in the mantle and core. Improving the seismological resolution of deep structure as data accumulate and as new analysis methods are developed will hel ...
seafloor-spreading
... Base your answers to questions 20 through 23 on the information and diagram below. At intervals in the past, the Earth's magnetic field has reversed. The present North magnetic pole was once the South magnetic pole, and the present South magnetic pole was once the North magnetic pole. A record of t ...
... Base your answers to questions 20 through 23 on the information and diagram below. At intervals in the past, the Earth's magnetic field has reversed. The present North magnetic pole was once the South magnetic pole, and the present South magnetic pole was once the North magnetic pole. A record of t ...
seafloor-spreading
... Base your answers to questions 20 through 23 on the information and diagram below. At intervals in the past, the Earth's magnetic field has reversed. The present North magnetic pole was once the South magnetic pole, and the present South magnetic pole was once the North magnetic pole. A record of t ...
... Base your answers to questions 20 through 23 on the information and diagram below. At intervals in the past, the Earth's magnetic field has reversed. The present North magnetic pole was once the South magnetic pole, and the present South magnetic pole was once the North magnetic pole. A record of t ...
Earths Interior- Milky Way
... *Eat your bar only when instructed to do so. The Milky Way bar will be a model of the Earth’s Interior today ...
... *Eat your bar only when instructed to do so. The Milky Way bar will be a model of the Earth’s Interior today ...
Chapter 17: Plate Tectonics
... Ancient Climatic Evidence Recall from Chapter 6 that sedimentary rocks provide clues to past environments and climates. By studying various sedimentary rocks, Wegener found evidence of vast climatic changes on some continents. Coal deposits, for example, had been found in Antarctica. Coal forms from ...
... Ancient Climatic Evidence Recall from Chapter 6 that sedimentary rocks provide clues to past environments and climates. By studying various sedimentary rocks, Wegener found evidence of vast climatic changes on some continents. Coal deposits, for example, had been found in Antarctica. Coal forms from ...
Chapter 2 Notes - Todd S. Thuma Homepage
... 2. Major ridges a. Mid-Atlantic Ridge b. East Pacific Rise off N. America at Gulf of California c. Mid-Indian Ridge intersects Africa-Asia in Red Sea d. Pacific-Antarctic Ridge (encircles Antarctica) ...
... 2. Major ridges a. Mid-Atlantic Ridge b. East Pacific Rise off N. America at Gulf of California c. Mid-Indian Ridge intersects Africa-Asia in Red Sea d. Pacific-Antarctic Ridge (encircles Antarctica) ...
Biogeochemical cycles – Geological, Chemical
... carpentry, from tektōn a builder). • These plates can move relative to each other at speeds of centimetres per year - approximately the rate at which human fingernails grow. • The plates slide about on the layer of hotter, softer mantle. • The mantle is like a supercooled liquid – i.e. a glass. • Wh ...
... carpentry, from tektōn a builder). • These plates can move relative to each other at speeds of centimetres per year - approximately the rate at which human fingernails grow. • The plates slide about on the layer of hotter, softer mantle. • The mantle is like a supercooled liquid – i.e. a glass. • Wh ...
The Ocean Floor - isd194 cms .demo. ties .k12. mn .us
... Composition of Ocean Water • The salinity of ocean water is 3.5% (for every 100mL of water 3.5 grams is salt) • Salt = dissolved elements in water, sodium and chlorine, most abundant-but there are many other salts, among them Mg, K, S, and Ca What do Sodium (Na) and Chlorine (Cl) combine to form? ...
... Composition of Ocean Water • The salinity of ocean water is 3.5% (for every 100mL of water 3.5 grams is salt) • Salt = dissolved elements in water, sodium and chlorine, most abundant-but there are many other salts, among them Mg, K, S, and Ca What do Sodium (Na) and Chlorine (Cl) combine to form? ...
EAS 102 / BIO G 170 Lecture 10, Page 1 of 6 PLATE TECTONICS
... the product of more complete melting of the mantle beneath midocean ridges, may have been as much as three times thicker, and thus less susceptible to subduction. However, being correspondingly more mantle-like in composition, Archean oceanic crust should have been less buoyant . The opposed effects ...
... the product of more complete melting of the mantle beneath midocean ridges, may have been as much as three times thicker, and thus less susceptible to subduction. However, being correspondingly more mantle-like in composition, Archean oceanic crust should have been less buoyant . The opposed effects ...
Features of the Ocean Floor
... Deep Ocean Basins Deep ocean basins have their own distinct features ...
... Deep Ocean Basins Deep ocean basins have their own distinct features ...
Evolution of Canada`s Landforms We will now take a look at the
... We will now take a look at the geologic history of Canada. It has taken millions of year for the forces of plate tectonics and erosion to shape Canada’s landscape to what is has become. All of these forces remain active on the Canadian landscape today…what do you think Canada will look like in anoth ...
... We will now take a look at the geologic history of Canada. It has taken millions of year for the forces of plate tectonics and erosion to shape Canada’s landscape to what is has become. All of these forces remain active on the Canadian landscape today…what do you think Canada will look like in anoth ...
surface features and plate tectonics (modified for adeed)
... divergent boundaries - where new crust is generated as the plates pull away from each other fault -a fault is a fracture along which the blocks of crust on either side have moved relative to one another parallel to the fracture lithosphere – The lithosphere is the outer solid part of the earth, incl ...
... divergent boundaries - where new crust is generated as the plates pull away from each other fault -a fault is a fracture along which the blocks of crust on either side have moved relative to one another parallel to the fracture lithosphere – The lithosphere is the outer solid part of the earth, incl ...
Unit 3 notes
... under water but rising over 1KM above sea floor. c. Islands – Sea mounts that rise above the sea surface. example the Hawaiian islands. ...
... under water but rising over 1KM above sea floor. c. Islands – Sea mounts that rise above the sea surface. example the Hawaiian islands. ...
Chapter 21 Planet Earth
... and is made up of the crust and rigid upper mantle. It has seven large pieces and several small pieces called tectonic plates. Plate tectonics is the theory that explains how the outer parts of Earth change through time. ...
... and is made up of the crust and rigid upper mantle. It has seven large pieces and several small pieces called tectonic plates. Plate tectonics is the theory that explains how the outer parts of Earth change through time. ...
The Earth’s structure - Bishopston Comprehensive School
... • Earth’s lithosphere = crust + upper part of mantle • It’s cracked into pieces called tectonic plates • Tectonic plates are like big rafts that float across the liquid mantle • Map: Edges of plates As plates move so do continents • Plates move 1cm/year ...
... • Earth’s lithosphere = crust + upper part of mantle • It’s cracked into pieces called tectonic plates • Tectonic plates are like big rafts that float across the liquid mantle • Map: Edges of plates As plates move so do continents • Plates move 1cm/year ...
131KB - NZQA
... basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is region of Hawke’s Bay. Hawke’s Bay is on the Australian Plate but west of Hikurangi Trough, which is where subduction occurs. This subduction is not smooth, friction between the pl ...
... basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is region of Hawke’s Bay. Hawke’s Bay is on the Australian Plate but west of Hikurangi Trough, which is where subduction occurs. This subduction is not smooth, friction between the pl ...
66KB - NZQA
... basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is region of Hawke’s Bay. Hawke’s Bay is on the Australian Plate but west of Hikurangi Trough, which is where subduction occurs. This subduction is not smooth, friction between the pl ...
... basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is region of Hawke’s Bay. Hawke’s Bay is on the Australian Plate but west of Hikurangi Trough, which is where subduction occurs. This subduction is not smooth, friction between the pl ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.