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Plate Tectonics Test Study Guide
Plate Tectonics Test Study Guide

... plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust scientific theory- a well-tested concept that explains a wide range of observations plate tectonics-the theory that pieces of Earth’s lithosphere are in constant motion, dri ...
Plate Tectonics Test Study Guide (A)
Plate Tectonics Test Study Guide (A)

...  Describe the theory of plate tectonics  Describe the three types of plate boundaries, including what happens at each type, and the landforms that can be created at each type. Section 5: Key Terms plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of cont ...
6th Grade Science 1st Semester Final Exam / Common Assessment
6th Grade Science 1st Semester Final Exam / Common Assessment

... 42. (S6E5e) What was Alfred Wegener’s theory? a. The continents have always been where they are now b. Today’s continents were once part of a single land mass that split apart. c. The continents are made of rock. d. The continents will one day join to form a single continent. 43. (S6E5g) What can fo ...
3. The Earth system
3. The Earth system

L8EarthAndFossils
L8EarthAndFossils

... Let us solve this equation, using the following general theorem: Generally, a solution x(t) of the autonomous differential equation dx/dt = f(x) which satisfies the condition that at some moment of time t0 the value of the dependent variable x was x0 can be found by integrating this equation: ...
Kein Folientitel - Solar System School
Kein Folientitel - Solar System School

... automatic cameras. This allows to reconstruct the pre-impact orbit in the solar system. In each case, it is fairly elliptical with the apohelion in the asteroid belt. Collisions in the asteroid belt break up larger bodies and send the fragments onto different orbits. The orbits of some fragments are ...
No Slide Title
No Slide Title

... Chemical weathering (hydrolysis) was probably important in regulating this The weathering process involved a negative feedback ...
Lesson 1/Explore – Page 193 “Fossil Evidence of
Lesson 1/Explore – Page 193 “Fossil Evidence of

... Dividing Time  When scientists began developing the geologic time scale in the 1800s, they did not have absolute-age dating methods. To mark time boundaries, they used fossils.  Often, a type of fossil found in one rock layer did not appear in layers above it.  Sometimes, entire collections of f ...
Restless Earth - Acland Burghley School
Restless Earth - Acland Burghley School

... state) of layered structure (including the asthenosphere); using rock samples to contrast continental and oceanic crust. Examine the core’s internal heat source (through radioactive decay) and how this generates convection, which drives plate motion and generates the Earth’s magnetic field ...
PowerPoint Lecture Chapter 12
PowerPoint Lecture Chapter 12

... was continuous and wrapped around the Earth b. Proposed hypothesis of seafloor spreading or divergence ...
Earth Interior
Earth Interior

... diagram and indicate if they are solid or liquid. Hint: Really look at the where the core is and what happens in there. ...
Plate Tectonics Links together 2 theories
Plate Tectonics Links together 2 theories

... Fit together like stones Plates form the surface of the Earth. ...
Plate Tectonics
Plate Tectonics

... 1. On which layer does erosion and weathering occur on Earth? ...
Slide 1
Slide 1

... 1. Describe the layers of the structure of the Earth. 2. Describe the theory of continental drift. 3. Describe the theory of plate tectonics. 4. Explain how earthquakes and volcanoes form. ...
ENVIRONMENTAL SCIENCE
ENVIRONMENTAL SCIENCE

... plates which glide across the underlying asthenosphere much like chunks of ice setting on a frozen lake. The continents are located on tectonic plates and move around with them over time. Much of the geologic activity that occurs at the Earth’s surface takes place at tectonic plate boundaries. The f ...
EPSC-201_2015final-E..
EPSC-201_2015final-E..

... Explain the four factors that determine whether folds or faults form during deformation. Four factors determine whether a rock will deform plastically or break: the confining pressure, temperature, time (strain-rate) and the rock composition. The higher the temperature, the weaker and less brittle a ...
Capacity Matrix Name: Date Started: Date Completed: Class/Course
Capacity Matrix Name: Date Started: Date Completed: Class/Course

... Name: __________________________________________Date Started: __________________Date Completed: ______________ ...
Lecture 19 - The First Living Things on Earth
Lecture 19 - The First Living Things on Earth

... Stromatolites are layered rocks formed in shallow water from sediments trapped by microbe mats. Colonies of cyanobacteria found in shallow marine lagoons and hypersaline lakes. ...
Document
Document

... A rock’s (87Sr/86Sr)i value call tell you how enriched or depleted its mantle source was. i.e. (87Sr/86Sr)i = 0.7020 at 2Ga means a depleted source How would you explain a (87Sr/86Sr)i value of 0.728 at 1.4Ga? ...
Chapter 4
Chapter 4

...  Alfred Wegener  Continents can drift apart from one another and have done so in the past Pangea  Greek word meaning “All Earth”  Name for the single land mass that is the separate continents of today Panthelassa  Name for the single ocean of the world that is the separate oceans of the world t ...
Guided Reading on Sections 23.3 and 23.4
Guided Reading on Sections 23.3 and 23.4

... ___________________ were geographically fixed. 2. They regarded the surface of the planet as a static _________ spread over a molten, gradually cooling _______________. They believed that the cooling of the planet resulted in its ___________________, which caused the outer skin to contort and wrinkl ...
Name: Doe Date: May 13, 2015 Directions: 1. Read the following
Name: Doe Date: May 13, 2015 Directions: 1. Read the following

... is, different) core is made up of molten (what, nickel, look) and iron and the inner core ...
Climate Change
Climate Change

... • Human technology and the atmosphere: – The industrial revolution has increase the amount of CO2 in the atmosphere along with other pollutants leading to global warming increases – Humans have also impacted the ozone layer by weakening it with CFC’s. This issues has started to repair itself now tha ...
Exam review questions 2008 2
Exam review questions 2008 2

... What is the difference between a laccolith and a batholith? 68. Absolute dating of rock layers is more specific because it uses properties of atoms such as the ____________ of a radioactive isotope to determine the age of rocks. a. ...
PlateTectonicsJeopardy 2013_2014
PlateTectonicsJeopardy 2013_2014

... Oceanic crust is consumed and returns to the Earth’s mantle during this process at some convergent plate boundaries. ...
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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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