2. Phases of the Moon Page 59

3. How far away is the MOON? 380,000 km ( about 239,000 miles)

4. The moon is about 1/6 the size and mass, and has approximately 1/6 the gravity of Earth.

6. What is a SATELLITE? A natural or man made object that revolves around a planet (A natural satellite is a MOON)

7. What is the moon doing out in space? Revolving around the Earth in a counterclockwise direction Rotating on its axis as it goes around the Earth

8. Where did the Moon come from?

9. Giant Impact Theory Earth struck by large body, size of Mars. Part of body + Earth flung into space. Captured by gravity of Earth. Reformed into sphere

11. Why does the moon appear to shine?

16. It is reflecting light from the sun. Only the side of the moon facing the sun lights up! Half of the moon is always lit up. We don’t always see the side that is lit!

17. Why do we always see the same face/side of the moon? (“the man on the moon”) The moon completes one rotation (spin) in the same time it takes to revolve around the Earth.

21. The Moon’s orbit is a slightly tipped Ellipse (compared to the orbit of Earth around the sun.) What is the orbit of the moon like?

23. What is a moon phase? Different shapes visible portion of the moon makes as seen from Earth.

24. How long does it take for the moon to go through all of it’s phases? 29.5 days, or about a month! Tip-think of it as a moonth!

25. 1.New Moon 2.Waxing Crescent 3.First Quarter 4.Waxing Gibbous 5.Full Moon 6.Waning Gibbous 7.Third Quarter 8.Waning Crescent Waxing: Waning: Lit portion is increasing in size. Lit portion is decreasing in size.

26. DreamWorX= WaXing

27. “Crescent”

28. Try it! Try to draw a model of where the moon would need to be, relative to the Sun and Earth, in order to see each phase:

30. Phases of the Moon Sunlight (1) New Moon (2) Waxing Crescent (3) First Quarter (4) Waxing Gibbous (5) Full Moon (6) Waning Gibbous (7) Third Quarter (8) Waning Crescent Earth The general locations and orientations for the phases of the moon. Earth spins on its axis in the same direction as the moon’s orbit.

31. Sunlight Earth (1) New Moon How much of the moon’s face does the person see? What time of day is it for the observer? Noon!! NEW MOON Wherever the person looks all they see is shadowed moon. Perspective & The Moon’s Face

32. Sunlight Earth (2) Waxing Crescent How much of the moon’s face does the person see? What time of day is it for the observer? 3PM!! WAXING CRESCENT When you look up you see only a small crescent brightly lit. (Right Side)

33. Perspective & The Moon’s Face Sunlight Earth (3) First Quarter How much of the moon’s face does the person see? What time of day is it for the observer? Sunset - 6PM!! FIRST QUARTER When you look up you see one half of the front face of the Moon brightly lit. (Right side)

34. Perspective & The Moon’s Face Sunlight Earth (4) Waxing Gibbous How much of the moon’s face does the person see? What time of day is it for the observer? 9PM!! WAXING GIBBOUS When you look up you see only a small crescent, darkly shadowed, on the left.

35. Perspective & The Moon’s Face Sunlight Earth (5) Full Moon How much of the moon’s face does the person see? What time of day is it for the observer? Midnight-12AM!! FULL MOON When you look up you see the entire face of the Moon brightly lit.

36. Perspective & The Moon’s Face Sunlight Earth (6) Waning Gibbous How much of the moon’s face does the person see? What time of day is it for the observer? 3AM!! WANING GIBBOUS When you look up you see only a small crescent, darkly shadowed, on the right.

37. Perspective & The Moon’s Face Sunlight Earth (7) Third Quarter How much of the moon’s face does the person see? THIRD QUARTER When you look up you see one half of the front face of the Moon brightly lit. (Left side) What time of day is it for the observer? Sunrise - 6AM!!

38. Perspective & The Moon’s Face Sunlight Earth (8) Waning Crescent How much of the moon’s face does the person see? WANING CRESCENT When you look up you see only a small crescent brightly lit. (Left Side) What time of day is it for the observer? 9AM!!