THE MOON’S EFFECT ON EARTH

LUNAR - RELATED TO THE MOON FROM LATIN, “LUNA”, MEANING “MOON”

ORBIT ONE REVOLUTION AROUND ANOTHER BODY REVOLUTION: one object moves around another in a path similar to a circle ROTATION: an object spinning around its axis The moon makes @1 revolution per MONTH

THE MOON’S ORBIT TIDAL LOCK THE MOON ROTATES AT THE SAME RATE IT REVOLVES (@29.5 DAYS relative to Earth’s position with the Sun) THE SAME SIDE OF THE MOON IS ALWAYS FACING THE EARTH we only see one side of the moon

THE MOON’S ORBIT THE MOON’S ORBIT IS TILTED NOT ON SAME PLANE AS EARTH’S ORBIT AROUND THE SUN This is why eclipses are so rare.

THE MOON’S ORBIT ELLIPTICAL EARTH IS AT ONE FOCAL POINT Sometimes the Moon is closer…

MOON PHASES THE SHAPE OF THE ILLUMINATED (LIT) PORTION OF THE MOON AS SEEN FROM OBSERVERS ON EARTH

New Moon

Waxing Crescent

1st Quarter

Waxing Gibbous

Full Moon

Waning Gibbous

3rd Quarter

Waning Crescent

New Moon

NEW Moon NEW = we cannot see any of the moon (the shadow side is facing Earth)

Waxing Crescent WAXING = Lit portion is increasing CRESCENT = Smaller than Quarter

1st Quarter QUARTER = we can see ¼ of the moon

Waxing Gibbous WAXING = Lit portion is increasing GIBBOUS = Bigger than Quarter

Full Moon FULL = we can see 2/4 of the moon (the lit side is facing Earth)

Waning Gibbous WANING = Lit portion is decreasing GIBBOUS = Bigger than Quarter

3rd Quarter QUARTER = we can see ¼ of the moon

Waning Crescent WANING = Lit portion is decreasing CRESCENT = Smaller than Quarter

NEW Moon NEW = we cannot see any of the moon (the shadow side is facing Earth)

ECLIPSES One object blocks the light from the sun so another object is in shadow

SOLAR ECLIPSE Moon blocks light from Sun (can’t see Sun) Moon’s shadow appears on Earth’s surface

LUNAR ECLIPSE Earth blocks light from Sun (can’t see moon) Earth’s shadow appears on Moon

TIDES The daily rise and fall of sea level caused by the gravitational pull of the moon

Tides