Crust - SharpSchool
... mountain ranges ◦ Sea Floor Spreading – ridges form along cracks in the crust, molten rock rises through the cracks making new crust ◦ Age of sea floor – sea floor is youngest at the ridges, older farther away ◦ Ocean trenches – deep canyons where the sea floor is sinking into asthenosphere. ...
... mountain ranges ◦ Sea Floor Spreading – ridges form along cracks in the crust, molten rock rises through the cracks making new crust ◦ Age of sea floor – sea floor is youngest at the ridges, older farther away ◦ Ocean trenches – deep canyons where the sea floor is sinking into asthenosphere. ...
Continental Drift and Plate Tectonics part 1
... Why do the plates move? 1. Due to tremendous heat, rock in the 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. ...
... Why do the plates move? 1. Due to tremendous heat, rock in the 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. ...
Questions from the committee:
... observatories and observing systems including LTERs, NEON sites, and non-NSF observatories. ...
... observatories and observing systems including LTERs, NEON sites, and non-NSF observatories. ...
First Hour Exam, Fall, 2015
... 1. The "Big Bang" that produced the entire Universe as we know it occurred about a. 13.5-14.0 billion years ago c. 4.6-4.7 billion years ago b. 13.5-14.0 million years ago d. 4.6-4.7 million years ago 2. Our planet Earth, and the rest of our Solar System, are believed by scientists to have formed ap ...
... 1. The "Big Bang" that produced the entire Universe as we know it occurred about a. 13.5-14.0 billion years ago c. 4.6-4.7 billion years ago b. 13.5-14.0 million years ago d. 4.6-4.7 million years ago 2. Our planet Earth, and the rest of our Solar System, are believed by scientists to have formed ap ...
Forces in the Crust Day1
... DN: Distribute Tectonics Activity Sheet ACT: Introduction to stress, types of stress, fault, kinds of faults and land features (uplift, folding). ...
... DN: Distribute Tectonics Activity Sheet ACT: Introduction to stress, types of stress, fault, kinds of faults and land features (uplift, folding). ...
Chapter 5 Test
... Who came up with the idea of Pangaea? What is not evidence to support Pangaea? Tectonic plates can be made up of what two types of crust? At a mid-ocean ridge, the two plates are____________________________? In seafloor spreading the oldest rocks are found where? The major lithospheric plate the con ...
... Who came up with the idea of Pangaea? What is not evidence to support Pangaea? Tectonic plates can be made up of what two types of crust? At a mid-ocean ridge, the two plates are____________________________? In seafloor spreading the oldest rocks are found where? The major lithospheric plate the con ...
Earth/Environmental Science Review Packet
... C. change in direction of the axis, but without any change in tilt—this changes the stars near (or not near) the Pole D. wobbling around the axis (This occurs over an 18 year period) E. the center of mass where two or more celestial bodies orbit each other(This is the point about which the Earth and ...
... C. change in direction of the axis, but without any change in tilt—this changes the stars near (or not near) the Pole D. wobbling around the axis (This occurs over an 18 year period) E. the center of mass where two or more celestial bodies orbit each other(This is the point about which the Earth and ...
Unit 6 Vocabulary Review
... • Principle of cross-cutting relationships – anything that cuts through another layer is younger than what it cut. • Fault – break or crack in rock layres • Unconformity – a location where older layers come in contact with much younger layers (where it shouldn’t) • Disconformity – an unconformity wh ...
... • Principle of cross-cutting relationships – anything that cuts through another layer is younger than what it cut. • Fault – break or crack in rock layres • Unconformity – a location where older layers come in contact with much younger layers (where it shouldn’t) • Disconformity – an unconformity wh ...
Lecture 8 earth
... mantle allow molten material to rise => volcanoes. Core temperature is 6000 K. Metallic - mostly nickel and iron. Outer core molten, inner core solid. Atmosphere very thin ...
... mantle allow molten material to rise => volcanoes. Core temperature is 6000 K. Metallic - mostly nickel and iron. Outer core molten, inner core solid. Atmosphere very thin ...
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 ...
... 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 ...
plate tectonics
... • The theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. • These plates cover the entire Earth’s surface. • Some plates are under the ocean (ocean plates). • Other plates, known as continental plates, are under the Ea ...
... • The theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. • These plates cover the entire Earth’s surface. • Some plates are under the ocean (ocean plates). • Other plates, known as continental plates, are under the Ea ...
Observing Convection Currents - Science
... mantle. The lithosphere is the crust. The lithosphere floats on the asthenosphere (the crust floats on the mantle) like ice on water. A tectonic plate is a piece of the Earth's crust (or lithosphere). The surface of the Earth consists of seven major tectonic plates and many more minor ones. Because ...
... mantle. The lithosphere is the crust. The lithosphere floats on the asthenosphere (the crust floats on the mantle) like ice on water. A tectonic plate is a piece of the Earth's crust (or lithosphere). The surface of the Earth consists of seven major tectonic plates and many more minor ones. Because ...
No Slide Title
... Continental Drift The continents were all connected at one time Supercontinent was called Pangea Pangea broke apart up into two continents call Laurasia and Gondwanaland Continents are still moving today ...
... Continental Drift The continents were all connected at one time Supercontinent was called Pangea Pangea broke apart up into two continents call Laurasia and Gondwanaland Continents are still moving today ...
Chapt12RHS2014
... • Human ingenuity will find substitutes. • Current materials revolution in which silicon and other new materials, particularly ceramics and plastics, are being used as replacements for metals. • Finding substitutes for scarce minerals through nanotechnology. • We can recycle and reuse valuable metal ...
... • Human ingenuity will find substitutes. • Current materials revolution in which silicon and other new materials, particularly ceramics and plastics, are being used as replacements for metals. • Finding substitutes for scarce minerals through nanotechnology. • We can recycle and reuse valuable metal ...
Skinner Chapter 4
... Read each question carefully before answering. Work at a steady pace, and you should have ample time to finish. _____________________________________________ 1. Rocks deep inside the Earth are so hot that it is possible for them to flow like sticky liquids. 2. Radiation is the process by which heat ...
... Read each question carefully before answering. Work at a steady pace, and you should have ample time to finish. _____________________________________________ 1. Rocks deep inside the Earth are so hot that it is possible for them to flow like sticky liquids. 2. Radiation is the process by which heat ...
CP EnvSci Geosphere Review Name ______KEY______ Period
... ground vibrations is set off called an ___Earthquake______ . ...
... ground vibrations is set off called an ___Earthquake______ . ...
NAME: DATE: PERIOD:
... The process by which the ocean floor is extended is called Sea floor spreading. 7. What is a crack that forms between two plates as they move apart? ridge 8. The downward movement of a plate into the mantle is called subduction. 9. In 1912, Alfred Wegener introduced the Continental Drift Theory. 10. ...
... The process by which the ocean floor is extended is called Sea floor spreading. 7. What is a crack that forms between two plates as they move apart? ridge 8. The downward movement of a plate into the mantle is called subduction. 9. In 1912, Alfred Wegener introduced the Continental Drift Theory. 10. ...
Layers of Earth`s Interior Continental Drift/Seafloor
... Crust - outermost layer, made of oceanic crust (thin, very dense) & continental crust (thick, less dense) ...
... Crust - outermost layer, made of oceanic crust (thin, very dense) & continental crust (thick, less dense) ...
Plate boundary Tour
... explore these Tectonic Landscapes and put into “realworld” context what we have learned in class. ...
... explore these Tectonic Landscapes and put into “realworld” context what we have learned in class. ...
Age of the Earth
The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.