Earth, moon, rotation, orbit, seasons, tides, weather, eclipse, revolution

1. Science Notes: Ch. 12; Earth, Moon, & Sun

2. Science Notes: Ch. 12; Earth, Moon, & Sun

3. Rotation
Axis of rotation over 1 day.
Tilted by about 23-degrees.
Results in...
Day & night
2 high tides & 2 low tides.
Ocean circulation.

4. Revolution/Orbit
Elliptical over 1 year
Results in...
Seasons, Climate, & even Weather
Ocean Circulation patterns.

5. Equinoxes: Daytime
equals Nightime.
Summer Solstice; Winter Solstice;
Longest Day in N. Longest Night in N.

6. Temperature & Latitude
Active Art

7. Reasons for the Seasons

9. Gravity & the Moon’s Inertia
Newton concluded there are two forces keeping the
planets in orbit: gravity & inertia.

10. The relative motions of the
Earth, Sun, and Moon cause
Tides, Eclipses, Seasons,
Weather, Ocean Currents, and
the phases of the Moon.

11. Phases of the Moon

12. The Moon in Motion

13. Moon in Motion...
The moon rotates once on its axis in
the same amount of time it takes to
orbit around the earth; thus a day and
a year on the moon are equal: a bit
less than 29.5 days.

14. Moon in Motion...
Active Art

15. Solar Eclipse

16. Lunar Eclipse

17. Tides

18. Spring & Neap Tides
Spring tide happens during
New Moon and Full Moon
twice each month. Greatest
difference between
consecutive high & low tides.
Neap tide happens during 1st
and 3rd quarter twice a month.
Least difference between
consecutive high & low tides.