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Earthquakes
Earthquakes

... c. The point on the earth’s surface directly above the focus is called the epicenter. d. A fault zone is an area where there are groups of interconnected faults. i. For example, the San Andreas Fault zone is made up of many faults and any movement could cause an earthquake within that zone. ...
Biogeochemical cycles – Geological, Chemical
Biogeochemical cycles – Geological, Chemical

... field might be indicated by plate movement. ...
Earth Models Powerpoint
Earth Models Powerpoint

... c. Simplicity. How simple the model is to use and understand determines how it will be used. ...
ES Ch 1 NOTES Plate Tectonics
ES Ch 1 NOTES Plate Tectonics

... as a single landmass and then slowly moved apart. ...
evidence that our plates move - HULK SCIENCE
evidence that our plates move - HULK SCIENCE

... move. These are spots where magma rises into the ever- drifting earth plates. The Hawaiian Islands and Yellowstone Park are two places currently over hot spots. ...
Click here for the "Dynamic Earth Vocabulary"
Click here for the "Dynamic Earth Vocabulary"

... convergent plate boundary. The denser plate always moves under the less dense plate. A deep, underwater trough (ditch) created by one plate subducting (moving beneath) another plate at a convergent boundary. A theory posed in 1912 stating that the Earth’s continents move over time. Theory that Earth ...
ch01 - earthjay science
ch01 - earthjay science

... Many radioactive elements can be used as geologic clocks. Each radioactive element decays at its own nearly constant rate. The rate of decay also know as the half-life can be measured. Once this rate is known, geologists can determine the length of time over which decay has been occurring by measuri ...
PDF sample
PDF sample

... The Earth formed 4570 million years ago (mya) but the first animals with shells and bones appeared less than 600 mya. It is mainly with the help of their fossils that geologists have learned about the Earth’s history since then. We know very little about the 4000 million years before, known as Prec ...
EARTH SCIENCE SOL REVIEW
EARTH SCIENCE SOL REVIEW

... Sunspots—dark, cool area that occur in pairs. Solar flares and sunspot activity are increased every 11 years. Produces disruptions in electrical service on earth. Corona—largest layer that is only visible during a solar eclipse Photosphere—produces light ...
i-vi_MCD-SCI-EA-B-FM.indd - Middletown Public Schools
i-vi_MCD-SCI-EA-B-FM.indd - Middletown Public Schools

Earth Science Dept SOL Review Powerpoint
Earth Science Dept SOL Review Powerpoint

... Sunspots—dark, cool area that occur in pairs. Solar flares and sunspot activity are increased every 11 years. Produces disruptions in electrical service on earth. Corona—largest layer that is only visible during a solar eclipse Photosphere—produces light ...
Plate Tectonics
Plate Tectonics

... c. explain what force pushes or pulls continents d. describe how seeds moved from Africa to South America _____ 2. Subduction is a. the process by which oceanic crust sinks beneath trenches and back into the mantle. b. the direct transfer of heat through solid materials. c. the process that continua ...
Essential Questions - Thomas C. Cario Middle School
Essential Questions - Thomas C. Cario Middle School

... opposite side of the Earth, where no waves are detected by a seismograph. 6. What causes an earthquake to occur? An EQ occurs due to the breaking and/or shifting of rock beneath the Earth’s surface. 7. Can Earthquakes be predicted? Why or why not? No, there is no way to know exactly when the rock w ...
The Dynamic Earth www.mnh.si.edu/earth/ Plate Tectonics and
The Dynamic Earth www.mnh.si.edu/earth/ Plate Tectonics and

... Secrets from the Sea Floor What causes continents to move? Who discovered this? ___________________________ In what year?___________ How did he describe his paper that published his findings? Hess realized that new ____________ _______________ is constantly being formed at ____________________ _____ ...
File - Flipped Out Science with Mrs. Thomas!
File - Flipped Out Science with Mrs. Thomas!

Section 22.4 Plate Tectonics
Section 22.4 Plate Tectonics

Earth`s Changing Surface Review
Earth`s Changing Surface Review

... He could not identify the force that moves the tectonic plates ...
A Review of the Earth Notes
A Review of the Earth Notes

...  A scale of the history of the earth, supported by geological/archeological evidence. What are two ways that scientists can tell how old the earth is?  Radiometric dating and Relative dating using fossils. What is Relative Dating of Fossils?  Using The law of superposition to compare ages of foss ...
Layers of the Earth - Mrs. Rasmussen Science Class
Layers of the Earth - Mrs. Rasmussen Science Class

... weather we experience. Although we often use the term “air,” the atmosphere is made out of many gases like: nitrogen (78%), oxygen (21%), and other gases like argon and carbon dioxide (1%). Since there isn’t a distinct boundary between the atmosphere and outer space, it is generally stated that the ...
Intro to Plates_Density of Granite_Basalt
Intro to Plates_Density of Granite_Basalt

...  Draw a T chart that compares the thickness and composition of Oceanic and Continental Crust ...
Layers of the Moon - Challenger Center
Layers of the Moon - Challenger Center

... • Use appropriate tools and techniques to gather, analyze and interpret data. • Develop descriptions, explanations, predictions and models using evidence.   • Understandings about scientific inquiry  ...
Sea Floor Spreading
Sea Floor Spreading

Physical Geography
Physical Geography

... The theory that the land of the earth was once connected as one large super continent (Pangaea) and has moved “drifted” to its current locations (still moving) ...
Geology Content from Frameworks The content listed below comes
Geology Content from Frameworks The content listed below comes

...  Igneous rock undergoes weathering (or breakdown) to form sediment. The sediment is transported and deposited somewhere (such as at the beach or in a delta, or in the deep sea).  Igneous rocks are classified (or named) based on their composition (which minerals they contain) and texture (or the si ...
Document
Document

... of landforms on the earth’s surface . ...
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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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