2 Astronomy The study of space. The study of the Moon stars and other objects in Space.
3 Movement of Earth and Planets Rotation: When an object spins on its axis (like a top)1 rotation = 1 dayEarth 1 day = 24 hours
4 Revolution The movement of one object around another. Orbit = path around the Sun1 revolution = 1 yearEarth 1 year = 365 ¼ days
5 CalendarsAncient Egyptians created one the first Calendars. They had about 365 days in a Year.The Month is based on the Moon Cycle. 29 ½ days.Romans had a Calendar with 365 ¼ Days365 ¼ days? - Leap Year
6 Seasons The Earth has seasons because its axis is tilted 23 ½ degrees. How the sunlight hits the Earth determines the seasons.Direct rays = summer Indirect rays = Winter
7 Solstice Winter: The shortest day of the Year (about Dec. 21) Summer: The longest day of the Year(about June 21)
8 Equinox Equal day and night Autumn: Autumnal Equinox - First day of Fall(about Sept. 21)Vernal: Spring Equinox – First day of Spring(about March 21)