Science Astronomy Vocabulary Terms
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each of the black spaces below before clicking
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| astronomy | the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties
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| telescope | a device shaped like a long tube that you look through in order to see things that are far away
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| rotation | the action or process of rotating on or as if on an axis or center, one complete turn
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| tide | the regular upward and downward movement of the level of the ocean that is caused by the pull of the Sun and the Moon on the Earth
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| orbit | a path described by one body in its revolution about another (as by the earth about the sun
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| satellite | an object (such as a moon) that moves around a much larger planet
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| latitude | distance north or south of the equator measured in degrees up to 90 degrees
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| crater | a large round hole in the ground made by the explosion of a bomb or by something falling from the sky
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| revolution | the action of moving around something in a path that is similar to a circle
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| heliocentric | having or relating to the sun as the center
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| solstice | one of the two times during the year when the sun is farthest north or south of the equator
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| ellipse | a shape that resembles a flattened circle: oval
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| equinox | a day when day and night are the same length
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| Core | the inner most part of something
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| photsphere | the visible surface of the Sun/ the depth of a star's outer shell from which light is radiated
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| phase | the shape of the part of the moon that is visible at different times during a month
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| lunar eclipse | an occasion when the moon looks like it is completely or partially covered with a dark circle because the Earth's shadow is on it
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| chromosphere | the second layer of the three main layers in the Sun's atmosphere
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| gas giants | also known as the Jovian or Outer; the planets whose compositions are mostly gases, such as hydrogen, and small amounts of rocky material (mostly at their cores)
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| axis | the imaginary straight line in which an object (such as Earth) turns around
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| corona | a bright circle seen around the sun or the moon
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| solar eclipse | an occasion when the sun looks like it is completely or partially covered with a dark circle because the moon is between the sun and the Earth
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| gravity | the natural force that tends to cause physical things to move towards each other /the force that causes things to fall towards the Earth
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| greenhouse effect | the warming of the Earth's atmosphere that is caused by air pollution. The greenhouse effect occurs when warmth from the sun is trapped in the Earth's atmosphere by a layer of gases (such as carbon dioxide) and water vapor.
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| comet | an object in outer space that develops a long, bright tail when it passes near the sun
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| terrestrial planets | the terrestrial planets are the inner planets closest to the Sun
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| asteroid | any one of thousands of small planets that circle around the sun
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| asteroid belt | the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped asteroids
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| meteor | a piece of rock or metal that burns and glows brightly in the sky as it falls from outer space into the Earth's atmosphere
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| meteorite | a piece of rock or metal that has fallen to the ground from outer space: a meteor that reaches the surface of the Earth without burning up entirely
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| meteroid | a piece of stone-like or metal-like debris which travels in outer space
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| sunspot | temporary phenomena on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions.
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| prominences | a large, bright, gaseous feature extending outward from the Sun's surface, often in a loop shape.
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| solar flare | a sudden flash of brightness observed over the Sun's surface
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