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SCI Ch2 Study Guide KEY
SCI Ch2 Study Guide KEY

Chapter 13 Earth`s Interior and Tectonics
Chapter 13 Earth`s Interior and Tectonics

... Insert the cool diagram here showing the relationship between the Geophysical View and the Compositional View. ...
Week 30 Review Game
Week 30 Review Game

... I am a layer of Earth that is made of the upper part of the mantle and is thick like playdoh or melted ...
LAB 2
LAB 2

... SOLID, LIQUID & GAS Can travel through the whole planet The P-waves change direction (REFRACT) at the boundary between the different layers of the Earth ...
“Put that in the Form of a Question, Please!”
“Put that in the Form of a Question, Please!”

... crust is forced up. When pressure is applied, the edges of a plate may be forced up. ...
Document
Document

... Forces on the charges in these parts of the wire are perpendicular to the length of the wire, so they don’t contribute to the net current. For future use, call the length of wire shown in green “h” and the other lengths (where the two red arrows are) “ℓ”. ...
NOT
NOT

... ____________________ a circuit that connects several objects one after another so that the current flows in a single path. ____________________ a circuit that connects several objects in a way that the current for each object has its own path. ...
Earth`s Surface and Layers Notes
Earth`s Surface and Layers Notes

... collide ...
L09_Magnetic_Sources
L09_Magnetic_Sources

... C. Ørsted's discovery that a magnetic needle is acted on by a voltaic current. Only a week later, on September 18, he presented a paper containing a far more complete exposition of that and other phenomena. The SI unit of measurement of electric current, the ampere, is named after him. Ampère's fame ...
Electric Current Creates Magnetic Field
Electric Current Creates Magnetic Field

... between an electrical power source and current flowing through a wire? 2. What conclusions can you make regarding the relationship between the electrical power source and the magnetic field produced by the electrical current? ...
Planetary Accretion and the Origin of Crust
Planetary Accretion and the Origin of Crust

... • Young impact structure • Approximately 40,000 years old • Arid climate – excellent preservation • Remnants of meteorite found in crater and in ejecta ...
Magnetic Effects due to Electric Currents Result:
Magnetic Effects due to Electric Currents Result:

... Lenz’s Law (19th century):  The direction of the induced current (generated by changing magnetic flux) is such that it produces a magnetic field that opposes the change in original flux. E.g. If field increases with time the field produced by induced current will be opposite in direction to origina ...
7.1 Inside the Earth
7.1 Inside the Earth

Introduction to Earth Science
Introduction to Earth Science

... • Once observations have been made and data gathered, scientists try to explain how or why things happen in the manner ...
Lab
Lab

... On your journey back to Earth, you decide to think about the things you’ve learned about in your exploration of the universe. You start to realize that there are many similarities among the surface features of Earth and other celestial objects. To better understand what has caused the features that ...
Magnetic Properties - Help, Science!
Magnetic Properties - Help, Science!

... electrical terminals, a rotor, and a prime mover; however, most DC generators reverse the locations of the magnets and coils from where they are in an AC generator. • Since the rotor, instead of a magnet, spins in a DC generator, a means of drawing off the current induced in the rotor coils is provi ...
Magnetic-Properties-of-Materials
Magnetic-Properties-of-Materials

... or magnetite. Unlike paramagnetic materials, the atomic moments in these materials exhibit very strong interactions. These interactions are produced by electronic exchange forces and result in a parallel or antiparallel alignment of atomic moments. Exchange forces are very large, equivalent to a fie ...
MAGNETISM: PRINCIPLES AND HISTORY Magnetism 1 Magnetism
MAGNETISM: PRINCIPLES AND HISTORY Magnetism 1 Magnetism

... attracted iron. He mentioned the magical powers of magnetite in his writings. For many years following its discovery, magnetite was surrounded in superstition and was considered to possess magical powers, such as the ability to heal the sick, frighten away evil spirits and attract and dissolve ships ...
Unpacking the Standards
Unpacking the Standards

... d. Describe processes that change rocks and the surface of the earth. e. Recognize that lithospheric plates constantly move and cause major geological events on the earth’s surface. f. Explain the effects of physical processes (plate tectonics, erosion, deposition, volcanic eruption, gravity) on geo ...
Glossopteris flora continental drift Pangaea magnetism
Glossopteris flora continental drift Pangaea magnetism

Chapter 5-Study Questions
Chapter 5-Study Questions

... ___14. The region where an oceanic slab sinks into the athenosphere because of convergence is called a subduction zone. ___15. When rocks exhibit the same magnetism as the present magnetic field, they are said to possess reversed polarity. ___16. According to the plate tectonics theory, continents a ...
Magnetic Materials Background: 4. Classification of Magnetic Materials
Magnetic Materials Background: 4. Classification of Magnetic Materials

... a paramagnetic state. It is also not valid for many metals as the electrons contributing to the magnetic moment are not localised. However, the law does apply to some metals, e.g. the rareearths, where the 4f electrons, that create the magnetic moment, are closely bound. The Pauli model of paramagne ...
CITS_SamuelYang_Lecutre Note 2
CITS_SamuelYang_Lecutre Note 2

... The ratios Pb-206/Pb-204 and Pb-207/Pb-204 are put to the chart of rate calculation. The higher rates of these materials require more time to be changed their forms. ...
Layers of the Earth
Layers of the Earth

... discovered in 1909 using seismic data; found approximately 30 km from Earth’s surface ...
The Power of Magnets
The Power of Magnets

... electromagnet, which only behaves like a magnet when an electric current is flowing through it. Permanent magnets are made out of substances like magnetite (Fe3O4), the most magnetic naturally occurring mineral, or neodymium, a powerfully magnetic synthetic substance. The Earth itself is a huge perm ...
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History of geomagnetism



The history of geomagnetism is concerned with the history of the study of Earth's magnetic field. It encompasses the history of navigation using compasses, studies of the prehistoric magnetic field (archeomagnetism and paleomagnetism), and applications to plate tectonics.Magnetism has been known since prehistory, but knowledge of the Earth's field developed slowly. The horizontal direction of the Earth's field was first measured in the fourth century BC but the vertical direction was not measured until 1544 AD and the intensity was first measured in 1791. At first, compasses were thought to point towards locations in the heavens, then towards magnetic mountains. A modern experimental approach to understanding the Earth's field began with de Magnete, a book published by William Gilbert in 1600. His experiments with a magnetic model of the Earth convinced him that the Earth itself is a large magnet.
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