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| @font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } Ourselves and all that surrounds us |
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| @font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } the attractive force that one object exerts on another’s |
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| an object that orbits a star |
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| sizable body locked into orbit around a planet |
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| the smaller planets closer to the sun |
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| @font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } planets that most of their mass consists of gas |
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@font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; }
chunks of rock and or metal they comprise belts between Mars and Juniper
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@font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; }
icy objects that begin to evaporate and form long tails
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| @font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } immense balls of incandescent gas in which nuclear reactions produce intense and light |
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| @font-face { font-family: "Times New Roman"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }table.MsoNormalTable { font-size: 10pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } a group of stars in immense groups held together by gravity |
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| disturbances that transmit energy from one point to another by causing periodic motions |
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| Distance between succesive waves |
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| number of waves that pass a point in a given time interval |
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| A light source that is moving away from you, the light you see becomes redder |
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| Expanding Universe Theory |
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| The idea that the universe is continuing to expand all the time in every direction |
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| All matter and engery was initially packed into an infinitesimally small point then the point exploded 13.7 billion years ago |
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| atoms and molecules slowed down and accumulated into patchy clouds |
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| when the central ball of the disk becomes hot enough to glow |
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| When a start explodes and becomes a much larger star |
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| stream of atoms emitted from a star during its lifetime |
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| The sun and all other objects in the solar system formed from material that had been swirling about in a nebula |
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| The outer material that did not become part of the star. it is the source of planets |
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| bodies whose diameter exceeded about 1 km from the material that is left in the surrounding area |
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| Voctors in the competition to attract mass grows to this. these bodies approach the size of today's planets |
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| bodies whose temperature rose sufficiently to cause melting, denser iron alloy seperated out and snak to the center of the body, whereas lighter rocky materials remained in a shell surrounding the center |
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| solid objects falling from space that land on a planet |
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| The atmosphere, the hydrosphere, biosphere, lithosphere and the interior of the planet |
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| the air we breathe at sea level, interplanetary space, contains very little matter in a given volume |
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| the region affected by the force emanating from a magnet |
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| an envelope of gas consisting of 78% nitrogen and 21% oxygen with minor amount of other gases |
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| materials such as sand and gravel, in which are not stuck together |
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| covers 70% of the earth. most surface water is salty and occupies oceans but some is fresh and fills lakes and rivers |
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| Water that fills cracks and holes within rock and sediment under the land surface |
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| the variation in elevation of the land surface, defines plains, mountains and valleys |
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| carbon-containing compounds that either occur in living organisms, or have characteristics that resemble compounds in living |
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| A solid natural substance in which atoms are arranged in an orderly pattern |
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| Solid in which atoms are not arranged in an oderly pattern |
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| Aggregates of mineral crystals or grains, and massses of natural glass |
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| solids composed of metal atoms |
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| When solid materials become hot and transform into liquid |
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| rocks composed of silicate materals. Silica is a compound of silicon and oxygen |
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| like an eggshell, composed of rocks such as granite, basalt, and gabbro. the outerlayer of the earth |
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| a denser solid in the middle between the crust and the core |
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| The very dense center of the earth |
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| ground shaking due to the sudden breaking of rocks in the earth |
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| a fracture on which sliding occurs |
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| the rate of change in temperature with depth in the earth |
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| change in the crust mantle boundary |
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| Depth of 660km to 2,900km |
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| the section between 400km and 660 km |
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| Ourter later, it consists of the crust plus the uppermost part of the mantle |
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| the portion of the mantle in which rock can flow. the flow is rates of up to 15 cm per yer |
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