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Lithosphere
Lithosphere

... past each other ...
TAKS Review - Denton ISD
TAKS Review - Denton ISD

... tectonics theory (continental drift  plate tectonics theory). 2. the basic plate boundary movements and how they change Earth's crustal features. 3. how to read and interpret topographic maps. 4. the difference between weathering, erosion, and deposition. ...
earth`s components & characteristics
earth`s components & characteristics

... • Magma comes to surface & cools, creating crust • Usually in oceans, but can occur in continents (Africa’s Rift Valley) • Creates mid-ocean ridges • EX: Mid-Atlantic Ridge created when N.American plate pulls away from Eurasian plate. ...
Plate Tectonics, Section 1
Plate Tectonics, Section 1

Earth`s largest environmental catastrophe 250 million years ago
Earth`s largest environmental catastrophe 250 million years ago

... contained a large fraction of about 15 percent of recycled oceanic crust; i.e. the crust that had long before been subducted into the deep mantle and Large Igneous Provinces (LIPs) are huge then, through the hot mantle plume, brought back accumulations of volcanic rock at the Earth's surface. Within ...
Earth_Yesterday_Today_and_Tomorrow
Earth_Yesterday_Today_and_Tomorrow

... A gap in the geological record, usually caused by erosion of old rock layers and the deposition of new rock layers. ...
Earth, Yesterday, Today and Tomorrow
Earth, Yesterday, Today and Tomorrow

... A gap in the geological record, usually caused by erosion of old rock layers and the deposition of new rock layers. ...
Chapter 6 - USD Home Pages
Chapter 6 - USD Home Pages

... At first, is seems that differences would be fairly minor. The Moon would go through the same phases, but on the opposite side of the Sun. Waxing crescent would be prominent in the pre-dawn sky, folllowed by first quarter rising at midnight, etc. The old waning crescent Moon would be prominent in t ...
Unit 3: Forces Within - Lemon Bay High School
Unit 3: Forces Within - Lemon Bay High School

... What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate? ...
Earth Science Final Exam Study Guide
Earth Science Final Exam Study Guide

... 41 – 44. Identify the features labeled in figure 7-1. Ch 8: Earthquakes 45. A zone of weakness or a break in Earth’s crust is known as what? 46. Where do most present-day faults occur? 47. A tectonic plate boundary where colliding plates slide past each other (such as the San Andreas fault in Califo ...
November 2003
November 2003

Layers of the Earth rap
Layers of the Earth rap

... I’mma hop up on this fresh beat so I can teach you About the layers of the Earth, first things first The outermost layer is the crust filled with dirt And rocks and sand, I hope you understand The crust is the layer on top of which we stand Its made out of rocks, mostly igneous Oceanic crust the den ...
E.S. Ch. 3 Study Guide
E.S. Ch. 3 Study Guide

... Wegener’s hypothesis was that all the continents were once joined together in a single landmass and have since drifted apart. Continental Drift— Wegener’s idea; the continents slowly move over Earth’s Surface. Pangaea—The Super Continent. Fossil—is any trace of an ancient organism that has been pres ...
Lesson 1: Earth Science Overview
Lesson 1: Earth Science Overview

... Earth’s core is located _________________________________________ and is made mostly of ___________. The core can be divided into two sections: _________________________________________________ and the ___________________________________________________________. Earth’s Mantle The mantle is the laye ...
Rock
Rock

... • Earth’s geology is dynamic, and a human lifetime is a blink of the eye in the long course of geological time. • Earth consist of distinct layers that differ in composition, temperature, density, and other characteristics. • Plate tectonics is a fundamental system that shapes Earth’s physical geogr ...
Rock Cycle - science-b
Rock Cycle - science-b

... • Earth’s geology is dynamic, and a human lifetime is a blink of the eye in the long course of geological time. • Earth consist of distinct layers that differ in composition, temperature, density, and other characteristics. • Plate tectonics is a fundamental system that shapes Earth’s physical geogr ...
Unit 4 ~ Layers of the Earth, Plate Tectonics
Unit 4 ~ Layers of the Earth, Plate Tectonics

Bedrock in Ohio
Bedrock in Ohio

... underground, cools, and hardens, it makes intrusive igneous rock.  Extrusive igneous rock is made when magma comes to the Earth’s surface in the form of lava and then cools and hardens.  Common igneous rocks are:  Granite  Basalt  Diorite ...
Earth`s Structure Model
Earth`s Structure Model

... 1. Cut along only the dotted lines on RM 2. 2. Match the solid outline on RM 2 with the solid outline on RM 3. 3. Apply glue to the triangular area labeled “Place Glue Here” on RM 3. 4. Lay RM 2 on top of RM 3 so that the shapes match. 5. Organize the information cards in order from the inner core a ...
Document
Document

...  We are in the Quaternary Period of the Cenozoic Era.  Cenozoic Era- Earth has been in the Cenozoic Era for the last 65 million years. This era is characterized by the diversification of mammals. (Since dinos no longer ruled the land! They went extinct at the end of the Mesozoic Era, in the cretac ...
Earth Structure
Earth Structure

... The earth has a layered structure of crust (two main types), mantle, outer and inner core, each layer having a distinctive thickness, composition, density and physical state. Write notes using your textbooks (ES 1, ES 2 and ES 3) about each layer in the earth. TASK 2 EVIDENCE USED TO DISCOVER ABOUT ...
natural disasters
natural disasters

... The earth is broken into giant pieces of rock known as plates. These plates form the earth's crust. The plates are always moving slowly and will sometimes bump into each other. Earthquakes may occur when the plates collide. They may also occur far away from these plates at cracks in the earth's surf ...
Crust - MentorMob
Crust - MentorMob

... 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 ...
PPT-Int-Plate Tectonics - Interactive Science Teacher
PPT-Int-Plate Tectonics - Interactive Science Teacher

... See: The pieces separated, but the black line shows how they used to fit. What’s Happening: Coal deposits from different continents line up, suggesting there once was a super continent called Pangaea. There’s also the puzzle-like fit, fossils, climate, and other rock clues. Alfred Wegener first prop ...
Picture Review Name
Picture Review Name

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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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