Telling Time By The Light Of The Moon

Students will understand that local solar time is determined by the position of the sun relative to an observer's horizon; identify by name the phases of the moon—waxing crescent, first quarter, waxing gibbous, full, waning gibbous, last quarter, waning crescent, and new; define elongation as the measurement of angular distance (in degrees) between a line of sight from an observer on Earth to the sun and a line of sight to any other celestial object and understand that the phase of the moon depends upon the measurement of the eastern or western elongation of the moon from the sun.