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1 
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the part of the moon phases where the illumination is decreasing; left side of the 	moon is lit 
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3 
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the appearance of the illuminated portion of the moon as seen by an observer on Earth 
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4 
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more than half but less then fully illuminated	 
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6 
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the phase of the moon in which the right half is lit, and the left half is dark 
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7 
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the path of a celestial body or artificial satellite as it revolves round another body 
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12 
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the part of the moon phases where the illumination is increasing; right side of the 	moon is lit 
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13 
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the attraction that objects have for each other because they have mass and occupy space 
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15 
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the motion of an object around its own axis 
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18 
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the time at which the tide reaches its lowest level	 
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19 
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the phase of the moon that occurs when it passes between Earth and the sun 
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