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movements in space (revolution (moon (revolves around earth, 28 days,…
movements in space
revolution
orbit
when an object moves in a circle around another object
satellite
every planet revolves
length of "years" varies
Earth
365 days (1 year)
revolution + tilt = seasons
moon
revolves around earth
28 days
causes moon phases
rotation
spin / turn
Earth
turns on tilted axis
causes day and night
24 hours
all planets rotate
axes vary
length or "days" varies
moon
approx. 28 days
effect: we always see the same side of the moon
constellations
patterns of stars in the sky
named for pictures
different in each hemisphere
visible constellations change based on Earth's movments