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4_Ocean126_2006
4_Ocean126_2006

... 4. Inner core – solid but warm, very dense, rich in magnetic materials (Ni, Fe) ...
Earth has several layers.
Earth has several layers.

... Tectonic plates fit together like a jigsaw puzzle that makes up the surface of Earth. You could compare the lithosphere to the cracked shell of a hard-boiled egg. The shell may be broken into many pieces, but it still forms a “crust” around the egg itself. Most large tectonic plates include both con ...
Y2K, DEEP TIME, AND THEORY CHOICE IN GEOLOGY
Y2K, DEEP TIME, AND THEORY CHOICE IN GEOLOGY

Jordan`s Science Rap
Jordan`s Science Rap

... There once was a time when the land was all combined Into a super-continent called Pangaea oh my! Here comes a theory called continental drift Pangaea fell apart cuz the plates began to shift Shifting is what they do day in and day out So volcanoes erupt to let all the stress out Earthquakes can occ ...
The Layers of the Earth
The Layers of the Earth

... 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 ...
Crust - www .alexandria .k12 .mn .us
Crust - www .alexandria .k12 .mn .us

... 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’s Interior PowerPoint - Marcia's Science Teaching
Earth’s Interior PowerPoint - Marcia's Science Teaching

... 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 ...
Directed Reading A
Directed Reading A

... b. Earth changes only at certain times and only after certain events. c. Earth is uniform and unchanging; it has always been as it is now. d. the same geologic processes have been at work throughout Earth’s history. 3. Which of the following processes was NOT observed by Hutton when he developed the ...
Document
Document

... b. Earth changes only at certain times and only after certain events. c. Earth is uniform and unchanging; it has always been as it is now. d. the same geologic processes have been at work throughout Earth’s history. 3. Which of the following processes was NOT observed by Hutton when he developed the ...
Deforming the Earth`s Crust: Faulting
Deforming the Earth`s Crust: Faulting

... blocks of rock together (Compression) ...
Deforming the Earth`s Crust: Faulting
Deforming the Earth`s Crust: Faulting

... blocks of rock together (Compression) ...
Fact Sheet - SharpSchool
Fact Sheet - SharpSchool

... deposited at the bottom of a lake will eventually transform into sedimentary rock. Additional layers of sediments will continue to form over previous layers. Hence, the older layers would keep moving towards the bottom as new layers continue to add. ...
The Year
The Year

... • Due to the orbit and tilt of the earth the sun is in a different spot each day. – Noon moves ...
Chapter 3 Notes
Chapter 3 Notes

... – Surface is warmed by the sun and deep water is ___________________ A Global Temperature ________________________ – Most important functions of ocean is to absorb and store energy from _____________________ – Absorb over ___________ the solar radiation that reaches surface – If ocean didn’t regulat ...
Excellence
Excellence

... The Earth’s core provides an internal heat source for the Earth. Discuss the origin and distribution of this heat through the Earth, and the effects this may have on the Earth system. In your answer, you should: • explain the origin of the internal heat source in the core of the Earth • explain, wit ...
Notes: The Theory of Plate Tectonics
Notes: The Theory of Plate Tectonics

...  He said the continents ________ due to the earth’s _________ … and ________ through oceanic crust like an ice-breaker plowing through ________.  People said that Wegner cited no __________, only __________. This led some people to offer alternative ideas to ridicule ____________ Drift  For examp ...
8.E.1 Vocab - Schoolwires.net
8.E.1 Vocab - Schoolwires.net

... Divergent Boundary – the location where two tectonic plates pull apart Transform Boundary – the location where two tectonic plates slide past each other Sedimentary rock –formed at the surface of the Earth, either in water or on land. They are layered accumulations of sediments-pieces of rock, miner ...
Internal Structure of the Earth
Internal Structure of the Earth

... How do we know there are four layers? • We don’t, it’s a theory! • Using earthquake waves, they can tell whether an object is a liquid or a solid, so by using that information, they theorized about the interior layers of the Earth ...
Untitled - Triumph Learning
Untitled - Triumph Learning

Chapter 18 Section One
Chapter 18 Section One

... Tectonic plates fit together like a jigsaw puzzle that makes up the surface of Earth. You could compare the lithosphere to the cracked shell of a hard-boiled egg. The shell may be broken into many pieces, but it still forms a “crust” around the egg itself. Most large tectonic plates include both con ...
No Slide Title
No Slide Title

... What is the age of the ocean floor? What’s the age of the continents? Why are the ocean basins deep and the continents high? ...
Directed Reading
Directed Reading

Study Guide Answer Key
Study Guide Answer Key

... Base your answers to the following questions on the information and diagrams below. Saltwater plants of the same species were grown in soil in separate containers with 1 liter of water. All of the plants were the same height at the beginning of the experiment. Different amounts of salt were dissolve ...
NAME PERIOD ______ DATE FINAL EXAM REVIEW A student
NAME PERIOD ______ DATE FINAL EXAM REVIEW A student

... Base your answers to the following questions on the information and diagrams below. Saltwater plants of the same species were grown in soil in separate containers with 1 liter of water. All of the plants were the same height at the beginning of the experiment. Different amounts of salt were dissolve ...
relative dating absolute dating principle of superposition principle of
relative dating absolute dating principle of superposition principle of

... The time necessary for half of the  original number of radioactive atoms  of an element to decay to a stable  daughter product; for example, the  half‐life for potassium 40 is 1.3 billion  years.   ...
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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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