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Earth-Moon System

TermDefinition
accretion coming together of clumps of material
impact crater a bowl-shaped impression made by an impact event
high tide when a tide is at its highest level
low tide when a tide is at its lowest level
spring tides Earth, Moon, Sun in a line; full and new moon
neap tides Earth, Moon, Sun in a right angle; first and last quarter moon
phases of the moon cycling of shadows imposed on the moon by the Earth
first quarter "half" of the moon appears on the right
last/third quarter "half" of the moon appears on the left
waxing moving to full; seeing more of the moon; on the right
waning moving to new; seeing less of the moon; on the left
gibbous more than half
crescent less than half; sliver
Created by: shelly_spangler
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