1. DO NOW: WHY DOES THE MOON APPEAR TO SHINE? AIM 15: Why does the moon appear to look different to us on Earth every day? HOMEWORK: Textbook pages 197-200. Read, take notes, answer questions 2,3 and 5 on pg 207

3. 1. What percentage of the moon is lit by the sun? ALWAYS 50%... HALF

4. The moon completes one revolution AND one rotation in 27.3 days What does this mean? the same side of the moon ALWAYS faces Earth 2. Moon Motions

5. Moon phases are the apparent change in size and shape of the moon 3. What's a moon phase?

6. Moon Phases The moon shines because of reflected light from the Sun. As moon revolves we see different portions of its lighted side. Phase you see depends upon the positions of the moon, Earth, and Sun Moon Phases The moon shines because of reflected As moon revolves we see different portions of its lighted side. Phase you see depends upon the positions of the moon, Earth, and Sun

7. The_Moon 4 min.asf

8. One complete cycle of moon phases takes approximately how long? One "moon"th. Oops one month. 2 9 1/2 days 4. Moon Cycle

9. 5. Identifying the Phases

10. SUN Earth

11. NEW MOON

12. lighted half of the moon is facing the sun and the dark side faces Earth

13. SUN Earth

14. Waxing Phases - the portion of the moon we see is getting larger; this happens after the New Moon Waning phases- the portion of the moon we see is getting smaller; this happens after a Full Moon

15. Waxing Crescent

16. First Quarter Moon We see half the lighted side (one quarter of the moons surface)

17. Waxing Gibbous

18. Full Moon all of the moon's surface that faces Earth is lit up

19. SUN Earth

20. Waning Gibbous

21. Third Quarter

22. Waning Crescent

24. http://micro.magnet.fsu.edu/primer/java/scienceopticsu/solar/index.html Solar Eclipse http://www.calculatorcat.com/moon_phases/phasenow.php Current Moon phase http://www.dacre.net/moon/moonphase.html Calendar of moon phases Moon phases

25. Review: 1. It takes the moon approximately how long to go through a complete cycle of phases? 2. Why do we only ever see one side of the moon? 3. Why does the moon appear to change shapes throughout a moonth? (oops, month) 4. Explain the position of the sun, earth, and moon during a new moon, during a full moon

26. SUN Earth

27. SUN Earth

28. SUN Earth

29. SUN Earth 1.1. 2.2. 3.3. 4.4. 5.5. 6.6. 7.7. 8.8.

30. Moon pictures show moon seen from a person on Earth.

31. 1 2 3 4 5 6 7 8 New Moon 1 First Quarter 3 Waxing Gibbous 4 Full Moon 5 Waning Gibbous 6 Third Quarter 7 New Moon 1 2 Waxing Crescent Waning Crescent 8

32. Click here to download a worksheet for this activity. Click on the phases of the moon and place them in the correct order around the Earth.

33. New Moon New Moon 1 Waxing Crescent First Quarter Waxing Gibbous Full Moon Waning Gibbous Third Quarter Waning Crescent

34. Regents Questions: A cycle of moon phases can be observed from Earth because (1) the moon's distance from the Earth changes (2) the moon's axis is on a tilt (3) the moon spin's on its axis (4) the moon revolves around the Earth Why do we always see the same side of the moon? (1) The moon does not rotate on its axis (2) The periods of the moon's rotation and revolution are equal (3) The moon does not revolve around the Earth (4) The moon's revolutionary period is just half of the moon's period of rotation If a full moon occurs on November 1st, the next full moon phase will occur about: (1) November 22nd (2) November 30th (3) December 6th (4) December 13th

35. Attachments The_Moon 4 min.asf moon phases worksheet.pdf