1. The Moon

3. The Moon Our moon is Earth’s only natural satellite
It is one of the largest moons in the solar system
It is made of solid rock and is not icy like moons of outer planets
Only true moon of all inner terrestrial planets

6. The Moon There is no atmosphere and therefore no weather on the moon
The temperatures range from 127oC to -173oC
There are impact craters, highlands and mares
It is 3.8 to 4.6 billion years old
The Moon

7. Formation Theories The moon was captured by Earth’s magnetic field
It was formed simultaneously as the earth and solar system formed
OR – The most popular theory
A Mars-sized object collided with Earth and the ejected material from the collision formed the moon
Because:
Similar composition (silicates, no iron on moon)
No water on moon because it evaporated on impact

9. The Moon in Review No atmosphere Extreme temperatures No weather
bya
Solid rock
Capture
Simultaneous formation
Impact
No weather
Age
Theories