| Moon |
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| - Rotation and revolution times are the same � 27 1/3 days - Temperature averages from about -180 to 250 degrees F, 100 to -100 degrees C. - It takes 29 1/2 days for the full cycle of moon phases to complete. - Gravity is about 1/6th of Earths. - About 240,000 miles from Earth. - About 1/4th the size of Earth. - The surface is made up of mountains, caverns, and craters, and the surface is very rugged, sand-like, rough, and has fine and powdery dust. It also has plains, valleys, hills, Maria (seas), and lowlands. - Origin Theories (3) o Daughter Theory � The moon broke away from the Earth. o Sister Planet Theory � The moon is actually another planet, formed at the same time as Earth. o Capture Theory � The moon was captured by the Earth�s gravity and is stuck there. - When the Apollo 11 landed on July 20th, 1969, the first man on the moon, Neil Armstrong said �That�s one small step for (a) man, one giant leap for mankind." The �a� was said to have been planned to have been said, but was forgotten by Neil Armstrong when he first landed. |