1. Motion in the Solar System
Earth’s Rotation:
Earth rotates about it axis once every __________
24 hours.
-the side of the Earth facing the Sun is in daylight

2. Motion in the Solar System
Earth’s Revolution:
the travel of the Earth around the Sun
-takes days (add a day every 4 years)
-revolution time roughly equates to how far away from the Sun the planet sits

3. Earth’s Revolution- you tube-

4. Motion in the Solar System
Earth’s Tilt:
axis from North to South pole is not perpendicular to the Earth’s orbital path around the Sun
-it is tilted by 23.5 degrees

5. Motion in the Solar System
Earth’s Tilt:
Seasons:
as Earth revolves around the Sun, different areas of the Earth directly face the Sun
Winter: the southern hemisphere faces the Sun
Summer: the northern hemisphere faces the Sun

6. Motion in the Solar System Earth’s Tilt: Seasons:

7. The reason for the seasons!
(6min)

8. Motion in the Solar System
Motions of the Moon:
the Moon revolves around the Earth and rotates about its axis
-the rotation rate equals its revolution rate so the same side of the Moon always faces the Earth

9. Websites Our World: the moon, NASA- 4:00min
Phases of the moon-3:16

10. Motion in the Solar System
Phases of the Moon:
lunar cycle: all the phases of the Moon
New Moon: begins the lunar cycle
-Moon is not visible because the side illuminated by the Sun faces away from Earth
-amount of illuminated side visible increases from this point each night
Full Moon: the entire lit side of the Moon faces the Earth
-the amount of illuminated side facing the Earth diminishes from this point until the next new moon

11. Motion in the Solar System Phases of the Moon:

12. Motion in the Solar System
Eclipse: darkening of a celestial body due to the position of another celestial body
Solar Eclipse: when the Moon and Sun align and the Moon blocks the Sun from view

13. Motion in the Solar System
Eclipse: darkening of a celestial body due to the position of another celestial body
Lunar Eclipse: when the Earth is positioned between the Sun and Moon so the Moon is completely in the Earth’s shadow

14. websites Solar and lunar eclipse-you tube-1 min
Walking on the moon-youtube (2:30)