1. The Moon

2. MOON FACTS Natural satellite of earth Gravity 1/6 of earth - WHY?
No atmosphere - WHY?
Temp. difference: 134 C to -170 C -WHY?

3. LUNAR SURFACE Light areas - rough highlands
Dark areas - Maria - solidified lava
Rilles - long deep channels running through maria.
Regolith - layer of dust on surface

6. Man on the Moon

8. Craters Bowl shaped depressions Most formed millions of years ago
Rays - “splash marks” caused by recent collisions

10. Types of Craters
Simple Crater
Complex Crater

11. Moon Rocks

12. Basalt
Dark colored
Fine Grained
Rich in magnesium, titanium and iron

13. Anorthosites
Light-colored
coarse-grained
rich in calcium and aluminum

14. Breccia
fragments of several rocks melted together formed impact

15. Moon Formation - Stage One.
Mars-size planet hits earth hurling fragments of earth into orbit

16. Moon Formation
Stage 2
Surface covered with hot molten rock.
Densest materials sank to the center.

17. Moon Formation - Stage 3 Outer surface cooled forming thick
solid crust. Maria formed
as meteorites struck moon surface
and molten lava flowed up to the surface.

20. INTERIOR OF MOON
Crust - 60 to 100 km thick composed mainly of oxygen and silicon.
Mantle km thick composed of silica, magnesium, and iron.
Core - <700 km composed of iron.