The document discusses the phases of the moon over its approximately 29.5 day lunar cycle, as the moon orbits the Earth. Each month, the moon appears to change shape from new to crescent to half to full and back again, as the portion of the moon illuminated by the sun varies due to the relative positions of the moon, Earth and sun over the lunar cycle. Lunar eclipses occur when the Earth blocks the sun's light from reaching the moon.

1. MOON PHASES

2. lunar cycle
The moon's continuous orbit around the earth that takes
approximately 29 ½ days
it.wikipedia.org and www.leslienettling.com

3. moon
A natural satellite that orbits a planet

4. satellite
An object that orbits a planet

5. moon phasesWhat the Moon looks like at different times of the
month
Moon phases happen once every month (28 days)
Moon has phases because is revolving
around the Earth

6. full moonThe moon when it is visible as a fully illuminated
disk

7. new moonThe phase of the moon occurring when it passes
between the earth and the sun
Moon is between the Sun and the Earth

8. first quarter moonThe phase of the moon between the new moon and the full
moon; the right side of the moon is visible

9. third quarter moonThe phase of the moon between the full moon
and the new moon; the left side of the moon is
visible

10. lunar eclipseEarth casting a shadow on the moon