2. Moon phases The lighted side of the Moon faces away from Earth.
How the moon appears to Earth dwellers at different positions in its orbit is shown below:

3. On the scale of the earth as a 10” globe, how far is the moon, sun, etc.?
25 feet
Sun:
1.9 miles
Pluto:
73 miles
Alpha Centauri:
500,000 miles
Space Shuttle:
0.25 inch

4. What causes an eclipse?
Sun
Solar Eclipse
Earth
Lunar Eclipse

5. The lunar cycle An eclipse is when light is obscured by an object.
The Sun-facing side of the Moon is lit by sunlight almost all the time.

7. Solar eclipses
A solar eclipse occurs when the Moon’s shadow falls on Earth.

8. Tides
The daily cycle of rising and falling ocean levels is called a tide.

9. Spring tides
The gravity from the Sun can work with the Moon to create unusually high and low tides.
Unusually high and low tides are called spring tides.

10. Neap tides
Neap tides occur when there is unusually little difference between high and low tides