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Welcome to GEOLOGY - Bakersfield College
Welcome to GEOLOGY - Bakersfield College

... mantle, and core; explain properties. 3. Describe chemical differentiation. 4. Present at least 3 reasons why the earth is unique. I will get an A on my exams and quizzes. ...
Earthquake Vocabulary - Garnet Valley School District
Earthquake Vocabulary - Garnet Valley School District

... A large area of flat land elevated ...
Respect the teacher and your peers
Respect the teacher and your peers

... Wegener could not explain how the continents in the Northern Hemisphere fit together Wegener could not explain how similar geological features could be continued from one continent to another. Wegener could not explain how the continents could move through the sea floor Wegener could not explain how ...
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Lecture 5

... Atmosphere Basics • An atmosphere is just the gasses surrounding the solid part of a planet – Atmosphere always makes up a tiny fraction of the planet’s mass ...
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... but not an exchange of sun light. e. “open or closed”, there is an occasional exchange of matter with energy. ...
Earth`s Composition Tectonic Plates Virginia Geology Rock Cycle
Earth`s Composition Tectonic Plates Virginia Geology Rock Cycle

... - earthquake activity is associated with all plate boundaries; result when movement occurs along a fault; 3 seismograph stations needed to locate the epicenter of an earthquake ⋅ faults are breaks or cracks in the crust along which movement has occurred - most active faults are located at or near pl ...
Internal Structure of the Earth
Internal Structure of the Earth

... fairly low temperatures. I favor homogeneous accretion followed by separation, but inhomogenous accretion is certainly a possibility. • The present structure of core-mantle-crust seems to be due to melting/partial melting event involving – heat from coalescing the planet (mechanical energy from mete ...
SCIENCE TEST1 (VWILLIAMSSCIENCETEST1)
SCIENCE TEST1 (VWILLIAMSSCIENCETEST1)

... SCIENCE TEST1 (VWILLIAMSSCIENCETEST1) 22. Which is a device that is used to gather information about formations on the ocean bottom? A. sonar B. radar C. MRI D. laser 23. Which landform results when one of Earth's plates slides past another? A. faults B. plateaus C. mountains D. deltas 24. Volcanoe ...
Earth Layers Foldable
Earth Layers Foldable

... The Earth is composed of four different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball sm ...
Earth Science SOLs: Essential Understandings, Knowledge and Skills
Earth Science SOLs: Essential Understandings, Knowledge and Skills

... Most Virginia fossils are of marine organisms. This indicates that large areas of the state have been periodically covered by seawater. ...
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Reporting Category 3 Assessed Curriculum Vocabulary

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Earth`s Composition and Structure
Earth`s Composition and Structure

... composed of nitrogen (N2) and oxygen (O2) 3. Earth is made of a variety of minerals, glasses, melts, fluids and volatiles, all left behind during birth of the solar system 4. The Earth has layers: a thin silicate crust, a thick iron- & magnesium silicate mantle, and a thick metallic core 5. Physical ...
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Geography Lesson Tectonics Tuesday * The largest earthquakes

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Dynamic Earth Processes
Dynamic Earth Processes

... Standard 3c: Students know how to explain the properties of rocks based on the physical and chemical composition in which they formed, including plate tectonic processes. All rocks are composed of minerals.. 1. Igneous rocks are formed when molten magma or lava cools 2. Metamorphic rocks are formed ...
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Virginia Standards of Learning

...  Most Virginia fossils are of marine organisms. This indicates that large areas of the state have been periodically covered by seawater.  Paleozoic, Mesozoic, and Cenozoic fossils are found in Virginia.  Earth is very ancient — about 4.6 billion years old.  The history of Earth and the ages of r ...
Study Guide for layers or earth and plate tectonics 2017
Study Guide for layers or earth and plate tectonics 2017

... 10. Which layers of the earth makes up tectonic plates? 11. What are created because of transform boundary’s? 12. What state (solid, liquid, gas) is the inner and outer core? 13. What layer or part of the Earth causes tectonic plates to move? 14. What causes the tectonic plates to move? 15. What is ...
Changes to the Earth`s rocks and atmosphere
Changes to the Earth`s rocks and atmosphere

... The oceans also act as a reservoir for carbon dioxide but increased amounts of carbon dioxide absorbed by the oceans has an impact on the marine environment. Nowadays the release of carbon dioxide by burning fossil fuels increases the level of carbon dioxide in the atmosphere. Carbon dioxide is a gr ...
Unit 5 - Structure and Composition of the Earth
Unit 5 - Structure and Composition of the Earth

... • Plate tectonic theory had its beginnings in 1915 when Alfred Wegener proposed his theory of "_______________." • He was one of the first to realize that the Earth's surface has changed through time, and that continents that are separated now may have been joined together at one point in the past. ...
Earth`s Layers
Earth`s Layers

... 1) What are the four layers of the Earth? 2) The Earth’s crust is very ______? 3) The mantle is the largest layer of the Earth? True or False 4) Is the Outer Core a liquid or a solid? ...
Lesson 1: Earth Energy Lesson
Lesson 1: Earth Energy Lesson

... So how do we get these different features from mantle movement? • http://education.sdsc.edu/optiputer/flash/c onvection.htm • Watch what happens as: – Continents collide. (What is formed?) – Continents “drift” apart. (What is formed?) Since Wagener’s day we have observed new evidence/phenomena that ...
Unit 3 Lesson 3 Mountain Formation
Unit 3 Lesson 3 Mountain Formation

... Strain describes the change in shape of a material in response to a stress. There are three ways in which rocks will deform (strain) when stresses are applied. If a rock undergoes Elastic Deformation, it will change shape in response to a stress, then snap back into its original shape if the stress ...
Plate Tectonics - The Naked Science Society
Plate Tectonics - The Naked Science Society

... The seafloor spreading model is confirmed! ...
Version A - Partners4results
Version A - Partners4results

... Early in Earth’s history, the molten outer layers of Earth released gases to form an early atmosphere. Cooling and solidification of that molten surface formed the early lithosphere approximately 4.4 billion years ago. Around 3.3 billion years ago, photosynthetic organisms appeared on Earth and remo ...
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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.
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