The document discusses the phases of the moon. It explains that the moon gets its light from the sun and revolves around the earth every 28-31 days. As it revolves, the shape of the moon changes through phases such as new moon, crescent moon, quarter moon, gibbous moon, and full moon depending on how much of the illuminated side is visible to observers on earth.

1. EARTH’S
MOVEMENT
Phases of the Moon

2. Phases of the Moon
 Moon’s Light – The moon gets its light from the
Sun, it does not make its own light like a star
 Lunar Revolution – the moon revolves around
the Earth one time every 28-31 days (29.5 days
average)
 The Moon changes shape as it revolves around
the Earth, these are called Phases

3. Waxing vs. Waning
 Waxing – when the moon is growing or getting
bigger (Moon is on the Right)
 Waning – when the moon is shrinking or getting
smaller (Moon is on the Left)

4. Phases of the Moon

5. Phases of the Moon
 New Moon – no moon, the moon is not
visible
 Crescent Moon - less than half of the
moon is visible
 Quarter Moon - half of the moon is
visible
 Gibbous Moon – more than half of the
moon is visible
 Full Moon – ALL of the moon is visible

6. Phases of the Moon
 New Moon – no moon, the moon is not
visible
 Crescent Moon - less than half of the
moon is visible
 Quarter Moon - half of the moon is
visible
 Gibbous Moon – more than half of the
moon is visible
 Full Moon – ALL of the moon is visible