Unit 1 Module 1 Key Words

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  • Created by: Gabby-A
  • Created on: 15-02-16 13:28
Solar System
The sun, planets, their moons, comets and asteroids
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The Sun
A star composed of hydrogen and helium - It is the largest object in the Solar System and contains more than 99.8% of the total mass
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A Planet
A sizable object orbiting a star
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A Moon
A natural satellite orbiting a planet
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Asteroids
Rocky objects which failed to form a planet
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Meteorites
Fragments of rock, which fall to Earth from space
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A Comet
Composed of ice and dust - The outer layer melts into water vapour as it gets closer to the sun
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A Rheid
A solid material that flows
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Peridotite
An ultramafic igneous rock composed of the minerals olivine and pyroxene with a coarse crystal size
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Olivine
A dense, ferromagnesian silicate mineral
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Partial Melting
Where a proportion of the minerals will have a lower melting point, allowing them to melt while the rest remains solid
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Kimberlites
Fine-grained, ultramafic igneous rocks
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A Xenolith
A fragment of ‘foreign’ rock included in an igneous rock, which has come from a different source
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An Ophiolite
A section of oceanic crust and upper mantle broken off and attached to the edge of a continent during plate movement
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Palaeomagnetism
Ancient magnetism preserved in rocks
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A Magnetic Anomaly
A value for the Earth’s magnetic field that is different from the expected value
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Magnetic Inclination
The angle of dip of the lines of a magnetic field - The angle with the horizontal made by a compass needle
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Remanent Magnetism
Magnetism shown by rocks due to the alignment of their magnetic minerals according to the Earth’s magnetic field at the time of their formation
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Card 2

Front

A star composed of hydrogen and helium - It is the largest object in the Solar System and contains more than 99.8% of the total mass

Back

The Sun

Card 3

Front

A sizable object orbiting a star

Back

Preview of the back of card 3

Card 4

Front

A natural satellite orbiting a planet

Back

Preview of the back of card 4

Card 5

Front

Rocky objects which failed to form a planet

Back

Preview of the back of card 5
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