11. Dec 2002

12. Jan 2003
Feb 2003

13. March 2003
April 2003

14. May 2003
June 2003

15. July 2003
August 2003

16. Sep 2003
Oct 2003

17. Nov 2003
Dec 2003

18. What’s between, the Moon, or Earth?
S.M.E. or S.E.M
What’s between, the Moon, or Earth?
The changing relative positions of the moon, Earth, and
sun cause the phases of the moon, eclipses, and tides.
New Moon
Solar
High
Crescent
Lunar
Half
Low
 S.E.M
Strong or week
Gibbous
Strong or week
Full Moon

19. 1. Earth is between (night) Both occur
Rotation
Revolution
Lunar means moon & solar means sun. A “day” and a “year” on the moon are the same length- so only one side faces Earth. The moon’s position relative to the Earth and Sun changes causing shapes called phases.
New Moon
Full Moon
1. Moon is between (day)
1. Earth is between (night)
Both occur
during the strongest (Spring) tides
S.M.E. 
S.E.M. 
2. the side of the moon facing Earth is fully lit
2. the side of the moon facing Earth is not lit
3. A solar eclipse is possible
3. A lunar eclipse is possible

20. Sun As viewed from the North Star Half Moon New Moon Full Moon Earth
S.M.E. 
S.E.M. 
Half Moon

21. Half Moon
Full Moon
New Moon
S.E.M. 
S.M.E. 
Half Moon

22. Eclipse is a block. The sun gets blocked during a solar eclipse.
Solar eclipse S.M.E.
Lunar eclipse S. E. M.
New moon
Full moon
Total Solar Eclipse is LEAST likely to occur (once every 350 yrs. in Lincoln)
Total Lunar Eclipse occur several times/year & viewed around the world
-Happens at day for a few min.
-Happens at night for an hour.
-Moon’s shadow falls on Earth
-Earth’s shadows falls on the moon

23. LEAST likely to occur to MOST likely
Total Solar Eclipse occur once in 1,000 yrs.
Total Lunar Eclipse occur twice a year on average
Spring tides are extra strong & occur twice per MONTH
Neap tides are extra weak & occur twice per MONTH
High tides occur twice per day
Low tides occur twice per day
2 Tidal Bulges are constant. Fixed on the moon.

24. Tides: the regular rise and fall of ocean water caused by gravity
Earth has 2 Tidal bulges: (high tides that move as the moon revolves)
-in 25 hours Earth rotates through the two tidal bulges to experience two high and two low tides each day.
SPRING TIDES are the strongest with the highest high and the lowest low tides. Occur during a Full and New moon when the sun Earth and moon line up in a straight line (180◦)
NEAP TIDES are the weakest with less noticeable high and low tides. Occur during a half moon phases when the sun Earth and moon make a right angle (90◦)