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ch 3 PowerPoint
ch 3 PowerPoint

... tenths of a degree Celsius for several years ...
Document
Document

... Evidence of Plate Tectonics • Dating of rocks – Oceanic rocks are much younger (200 million versus 4 billion years for continental – Younger to older parallel bands ...
Constructive vs. Destructive project
Constructive vs. Destructive project

... before the forces, after the forces and in the future.(Making sure to use science vocabulary) Be sure to Explain in words why the changes occurred and the forces that were causing the changes. Model the Before, After and Future Earths formations due the forces. (Brochure, Model, Drawing, Diorama, et ...
Plate Tectonics
Plate Tectonics

... Tens of Millions of years! ...
MEMO TO: Lisa A. Sarvestaney, M.A., Instructor FROM: Charles
MEMO TO: Lisa A. Sarvestaney, M.A., Instructor FROM: Charles

... defined as a naturally occurring, inorganic solid element or compound with crystalline structure” (442). In plain English, a rock is a jumble of elements and minerals formed under high temperature, pressure, and time. A mineral can be a rock; however, a rock is not a mineral. The key qualifier is th ...
Reading: Inside Earth
Reading: Inside Earth

... Your journey downward continues. At a depth of between 5 and 40 kilometers beneath the surface, you cross a boundary. Above this boundary are the basalt and granite rocks of the crust. Below the boundary is the solid material of the mantle, a layer of hot rock. The crust and the uppermost part of th ...
Felix Waldhauser, Lamont-Doherty Earth Observatory Title
Felix Waldhauser, Lamont-Doherty Earth Observatory Title

... the boundaries of tectonic plates and represent the primary physical expression of plate tectonic processes. The location of earthquakes within the Earth’s crust and mantle are the fundamental parameters used in a wide range of research areas, including earthquake physics, the structure and dynamics ...
Points to be noted
Points to be noted

... The upper mantle is further divided into 2 layers. The top layer is the lithosphere. The bottom layer is the asthenosphere. The lithosphere consists of hard rocks. The asthenosphere consists of partially melted rock. The crust and the lithosphere overlies this layer and slide on this layer. Very lit ...
Earth Layers - Cobb Learning
Earth Layers - Cobb Learning

... • B)OCEANIC CRUST=MORE DENSE, SINKS UNDER CONTINENTAL CRUST=BASALT • C) LESS THAN 1% EARTH’S MASS • D) COMPOSITIONAL LAYER=ALUMINUM, SILICON, OXYGEN ...
File
File

... Earth’s Layers Earth is like a giant magnet because of convection currents in what layer? ...
Precambrian Time and the Paleozoic Era 46
Precambrian Time and the Paleozoic Era 46

... the breakup of Pangaea the Tertiary Period It drifted to the South Pole during this epoch; therefore, it most likely was warmer than it is today. 5. Modern humans first appeared in the Holocene Epoch and have been on Earth less than 115,000 years. 6. The Mesozoic Era was longer by 120 million years. ...
ASOL SCIENCESCOPEhighschool14
ASOL SCIENCESCOPEhighschool14

OCEANIC GEOGRAPHY and the EARTH
OCEANIC GEOGRAPHY and the EARTH

... 2. formation of the oceans: oceans have been around for 4 billion years a. Theory #1: ocean water came from outgassing from volcanoes that spew water vapor from the mantle, which then condensed; some dissolved salts also may have come from the mantle, but they also come from weathering of rocks b. T ...
Earth`s Interior Quiz 9/9/16
Earth`s Interior Quiz 9/9/16

... D. Magnetosphere 5 What causes convection currents to move within the mantle? A. Heat from the core causes material to become less dense and rise towards the surface B. Heat from the sun causes material to become less dense and rise towards the surface C. Heat from the sun causes material to become ...
Plate Tectonics Guided Notes
Plate Tectonics Guided Notes

... 8. Volcanoes & The Ring of fire Volcanism is mostly focused at _____________ _______________. Volcanoes can be formed in 3 ways: 1) ____________________ 2) ____________________ 3) ____________________ Hotspot volcanoes form when ____________________________________________________ _________________ ...
The Earth - Cardinal Newman High School
The Earth - Cardinal Newman High School

... salt, coal, and limestone support evidence that continents had very different climates long ago it is not due to climate change, but rather change in position of the lands today most salt deposits range from 10-30ْ latitude rock salt has been found in MI coal is only formed in warm swampy climates t ...
Geologic Time Scale
Geologic Time Scale

... Used to show Earth’s history because the time span is so great. It is a record of life forms and geologic events in the Earth’s history ...
Internal Structure of the Earth and Pangean
Internal Structure of the Earth and Pangean

... plate tectonics. The theory of plate tectonics is a relatively recent theory (1970s); however Alfred Wegner suggested continental drift, a similar process, in the early 1900s. Wegner, a well traveled meteorologist, noticed that there were surprising similarities in fossils, geology, glacial striatio ...
Part A: 15 points
Part A: 15 points

... Part C: (10 points) Write a quality description of your project. Specifically, your description needs to include a justification for your material selection. In other words, why did you choose a particular material to represent a particular layer? What new and interesting fact did you learn about th ...
8.1 Earth has several layers
8.1 Earth has several layers

... • Tectonic plates rest on the asthenosphere (layer of soft, hot rock) • Convection currents within Earth helps to move the plates • convection—the transfer of heat by the movement of a material • convection current—a motion that transfers heat energy to a material • Moves very slowly, a few centimet ...
Bundle 1 - Humble ISD
Bundle 1 - Humble ISD

... Water and wind usually cause changes to the Earth’s surface slowly, but plate movement causes changes quickly.  How can plates pushing together change the Earth’s surface?  How can plates pulling apart change the Earth’s surface?  How can plates sliding past each other cause changes the Earth’s s ...
Section 1 Earth`s Structure - Midway Middle School Science
Section 1 Earth`s Structure - Midway Middle School Science

... Figure 4 Fossils of organisms such as Mesosaurus and Glossopteris were found in both South America and western Africa. The map shows mountain chains of similar ages that exist on separate continents that are far from each other. ...
Chapter 17 Plate Tectonics - The Summer Science Safari Summer
Chapter 17 Plate Tectonics - The Summer Science Safari Summer

... a. incomplete dominance - is when two traits combine and show up as a third trait. Neither of the two traits expresses dominance. Both alleles exert equal influence; neither is dominant or recessive b. allele – gene that controls a characteristic – provided by each parent to the offspring Ex. T, t m ...
Volcanoes and Magma
Volcanoes and Magma

... crystallize deep underground they look different from volcanic rocks because they cool more slowly and, therefore, have larger crystals. Igneous rocks cooled beneath the Earth's surface are called intrusive rocks. ...
(1 point
(1 point

... this layer they ______________ _____, indicating the inner core is solid. g) At about ____________ , the inner core is the ____________________ part of Earth. h) The inner core, at the center of the Earth, also experiences the greatest amount of _____________________. i) The inner core makes up abou ...
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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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