The phases of our Moon!

1. The Phases of the Moon

2. Two Types of Moon Shapes
Crescent Gibbous

3. Crescent Moon
The Moon is crescent
shaped when the lit
portion of the moon
looks thin and curved.

4. Gibbous Moon
The Moon is gibbous
shaped when the lit
portion of the moon is
more than half full and
bulges on both sides.

5. Quarter Moon

6. Quarter Moon
Even though the Moon
looks half full, it is a
quarter moon because
you only see 1/4th of the
actual Moon.
1/4th
1/4th

7. Quarter Moon
A 3rd Quarter Moon is
when the left side of the
Moon is lit.
A 1st Quarter Moon is
when the right side of
the Moon is lit.

8. Full Moon
It is a Full Moon when
one whole side of the
Moon is illuminated.

9. New Moon
It is a New Moon when
the Moon does not
appear illuminated by
the sun.

10. Waning & Waxing
The Moon is Waxing
when the right side
of the Moon is lit
The Moon is Waning
when the left side
of the Moon is lit
Waxing is when the
Moon appears to get
bigger
Waning is when the
Moon appears to get
smaller

11. Combining Shape & Appearance
Appearance: Lit on right side
Shape: Crescent
=
Moon Phase: Waxing Crescent

12. Guess The Moon Phase
Appearance: Lit on right side
Shape: Gibbous
=
Moon Phase: Waxing Gibbous

13. Guess The Moon Phase
Appearance: Not lit at all
=
Moon Phase: New Moon

14. Guess The Moon Phase
Appearance: Lit on left side
Shape: Crescent
=
Moon Phase: Waning Crescent

15. Guess The Moon Phase
Appearance: Fully lit
=
Moon Phase: Full Moon

16. Guess The Moon Phase
Appearance: Lit on left side
Shape: Quarter Moon
=
Moon Phase: 3rd quarter Moon

17. Guess The Moon Phase
Appearance: Lit on left side
Shape: Gibbous
=
Moon Phase: Waning Gibbous

18. Guess The Moon Phase
Appearance: Lit on right side
Shape: Quarter Moon
=
Moon Phase: 1st quarter Moon

19. Guess The Moon Phase
Appearance: Lit on left side
Shape: Crescent
=
Moon Phase: Waning Crescent

20. Guess The Moon Phase
Appearance: Lit on right side
Shape: Gibbous
=
Moon Phase: Waxing Gibbous

21. Guess The Moon Phase
Appearance: Fully lit
=
Moon Phase: Full Moon

22. Guess the Moon Phase
Appearance: Lit on right side
Shape: Crescent
=
Moon Phase: Waxing Crescent

23. Guess The Moon Phase
Appearance: Lit on right side
Shape: Quarter Moon
=
Moon Phase: 1st quarter Moon

24. Guess The Moon Phase
Appearance: Not lit at all
=
Moon Phase: New Moon

25. Guess The Moon Phase
Appearance: Lit on left side
Shape: Gibbous
=
Moon Phase: Waning Gibbous

26. Guess The Moon Phase
Appearance: Lit on left side
Shape: Quarter Moon
=
Moon Phase: 3rd quarter Moon

27. What Causes
the Phases
of the Moon?
The Moon appears
different due to its
position around the
Earth.
On Earth we see
different amounts of
the Moon illuminated

28. Waxing Crescent
Only a portion of
the lit side of the
moon is seen from
Earth during a
waxing crescent.

29. First Quarter
Only the right half
of the lit side of
the moon is seen
from Earth during
the first quarter.

30. Waxing Gibbous
More than half of
the Moon is seen
from Earth during
a waxing gibbous.

31. Full Moon
The entire lit
portion of the Moon
is seen from Earth
during a full Moon.

32. Waning Gibbous
More than half of
the Moon is seen
from Earth during
a waning gibbous.

33. Third Quarter
Only the left half
of the lit side of the
Moon is seen from
Earth during a the
third quarter.

34. Waning Crescent
Only a portion of
the lit side of the
Moon is seen from
Earth during a
waning crescent.

35. New Moon
The New moon as
seen from Earth is
completely dark
because only the
dark half is seen.

36. Slow Animation

38. Question:
When the Moon is here
Light from the Sun
shouldn’t be able to
hit the Moon.
It should be in Earth’s
shadow.
Why is it a Full Moon?

39. Answer:
The Moon orbits the Earth on a 5 degree incline, this is
why there are Full Moons when its behind the Earth.

40. Question:
How long do you think it takes the Moon to Orbit the Earth?

41. Answer:
It takes 27.32 days for the Moon to orbit once around the Earth
Question:
How long does it take the Moon to reach the same phase the
next time the moon passes around the Earth?