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| cloud of interstellar dust and gases, could either be creating a new star, or remains of a dead star, come in dif shapes and sizes |
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| the universe started as a single cosmic explosion about 15 billion years ago, clumps from this explosion cooled and condensed into galaxies, the nergy from explosion has caused galaxies to race away from the point of explosion, causing constant expanding of the universe |
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| Spiral Galaxy, Barred Spiral Galaxy, Irregular Galaxy |
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| like our Galaxy, the Milkyway |
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| there was a massive cloud of dust and gas before our solar system was created. the dust and gas created its own gravity that caused the cloud to compress and spin. a new sun forms but surrounding the sun is a bunch of debris (rock and dust). this debris starts to spin around the sun, creating a disc shape that spinds faster. heavier compounds like the silicates and metals cluster up near the sun. lighter elements like gasses cluster away from the sun |
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| formation of our Solar System |
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| mid sized star in both heat and luminosity |
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| the 4 terrestrial planets |
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| Mercury, Venus, Earth, Mars |
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| the 5 Gas Giants or Jovian Planets |
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| Jupiter, Saturn, Uranus, Neptune, Pluto |
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| hottest, smallest, most dense |
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| treacherous, atmosphere similar to ancient atmosphere of Earth |
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| largest moon of other planets |
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| largest, big red spot (hurricane) |
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| rotates on its side (east-west) |
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| Methane makes it blue like the sea |
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| What divides Terrestrial and Jovial planets? |
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| astroid belt (between Mars and Jupiter) |
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| dirty snowballs with a tail |
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| why do comet tails point away from the sun? |
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| space rock that enters earth's atmosphere and burns up |
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| the classification of stars is divided into two properties: |
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| no two stars are the same |
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| the hotter and brighter, then the |
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| the types of stars that create the 'S' on the HR diagram: |
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| Supergiants, main sequence, and white dwarfs |
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| the letters on the X axis of the scale are: |
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| O B A F G K M (Oh Boy A Fine Guy Kissed Me) |
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| Name the phases of the Moon: |
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| Last Quarter, Waning Giggous, Full Moon, Waxing Gibbous, First Quarter, Waxing Crescent, New Moon, Waning Crescent, New Moon |
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| earth casts a shadow on the moon |
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| mark the points at which the poles are tilted at their maximum toward or away from the sun |
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| the sun appears to be directly over Earth’s equator, and the lengths of the day and the night are equal over most of the planet. |
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| the earth rotates causing Day and Night as half of the earth faces the sun and the other side doesn't |
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| the elliptical motion of earth around the Sun, causing years and seasons |
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