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It takes 29 ½ days – almost 1 month – for the moon to move (revolve) around the Earth.

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Presentation on theme: "It takes 29 ½ days – almost 1 month – for the moon to move (revolve) around the Earth."— Presentation transcript:

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2 It takes 29 ½ days – almost 1 month – for the moon to move (revolve) around the Earth.

3 The moon reflects light from the sun.
The moon does not make any light of its own. The lighted parts that we see are called phases. The moon reflects light from the sun.

4 As the moon moves (revolves) around the Earth, it looks like it has different shapes. The shape of the moon does not really change. It just changes its location in space.

5 Half of the Moon is always lit up by the sun
Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area.

6 Phases of the Moon Sunlight Sunlight Earth
The general locations and orientations for the phases of the moon. (7) Third Quarter (6) Waning Gibbous (8) Waning Crescent Sunlight Earth (1) New Moon (5) Full Moon Sunlight Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. Earth spins on its axis in the same direction as the moon’s orbit. (2) Waxing Crescent (4) Waxing Gibbous (3) First Quarter

7 Perspective & The Moon’s Face
New moon is when the moon is between the sun and the earth Sunlight Earth (1) New Moon Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. NEW MOON Wherever the person looks all they see is shadowed moon. What time of day is it for the observer? Noon!!

8 Perspective & The Moon’s Face
Waxing means getting bigger/ Growing Sunlight Earth (2) Waxing Crescent Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. WAXING CRESCENT When you look up you see only a small crescent brightly lit. (Right Side) What time of day is it for the observer? 3PM!!

9 Perspective & The Moon’s Face
The moon is ¼ of the way around the earth Sunlight Earth (3) First Quarter Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. FIRST QUARTER When you look up you see one half of the front face of the Moon brightly lit. (Right side) What time of day is it for the observer? Sunset - 6PM!!

10 Perspective & The Moon’s Face
Moon is getting closer to being a full moon Sunlight Earth (4) Waxing Gibbous Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. WAXING GIBBOUS When you look up you see only a small crescent, darkly shadowed, on the left. What time of day is it for the observer? 9PM!!

11 Perspective & The Moon’s Face
The earth is between the sun and moon Sunlight Earth (5) Full Moon Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. FULL MOON When you look up you see the entire face of the Moon brightly lit. What time of day is it for the observer? Midnight-12AM!!

12 Perspective & The Moon’s Face
Waning means getting smaller Sunlight Earth (6) Waning Gibbous Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. WANING GIBBOUS When you look up you see only a small crescent, darkly shadowed, on the right. What time of day is it for the observer? 3AM!!

13 Perspective & The Moon’s Face
The moon is ¾ of the way around the Earth Sunlight Earth (7) Third Quarter Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. 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!!

14 Perspective & The Moon’s Face
We see this right before a new moon Sunlight Earth (8) Waning Crescent Note: If you have internet explorer 5.0 and beyond you will need to Use the mouse button to advance through these slides. For Netscape Navigator the graphics show as a static picture. 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!!

15 Complete this Say, Sun rises at 6am and sets at 6pm Moon Phase
Moon Rise Time New Moon Sunrise/6am Waxing Crescent 9am First Quarter 12pm Waxing Gibbous 3pm Full Moon 6pm Waning Gibbous 9pm Third Quarter 12am Waning Crescent 3am

16 Now we see a new moon again.
It takes the moon about 1 month (29 ½ days) to go through the phases

17 Eclipses Have you seen eclipses? What are eclipses in nature?
One celestial object casts its shadow on the other one

18 Solar Eclipses Sun – the shadow of the moon on the earth
Total solar eclipse in 1999

19 A – total eclipse B – annular eclipse C – partial eclipse

20 Lunar Eclipses Moon – the shadow of the earth on the moon

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22 Lunar Eclipse

23 Eclipses Cycle Every year there are at least two lunar eclipses
Lunar eclipses and solar eclipses always come in pairs Lunar eclipses can be seen everywhere on the earth, but the solar eclipses may only be seen on part of the earth

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30 What phase is the moon? What time of day will this moon phase be high in the sky? (meridan) What time will this moon phase set? What time will this moon rise?

31 What phase is the moon? What time of day will this moon phase be high in the sky? (meridan) What time will this moon phase set? What time will this moon rise?

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