Back to Space Unit
Earth's Moon - Chapter 3-2
|The Earth’s Moon
||· Neil Armstrong – 1st man to step on
moon - 1969
·Buzz Aldrin – 2nd man to step on moon - 1969
· Lunar module – Eagle explored the moon
· Michael Collins never touched the moon’s surface – orbited the moon in the Columbia
|The Moon’s Characteristics||· Diameter is ¼ Earth’s size
· Gravity is Earth’s gravity – Objects weigh much less on the moon
· Scientists left a mirror on the moon to help them calculate the distance from Earth to the moon. They knew how fast light travels, they bounced a beam of light from earth to the moon and timed how long it took to get back
· The moon has many moonquakes. The moon also has a crust, another layer then the core.
· Moon rocks – about 4.6 billion years old – same age as Earth.
· Earth and Moon formed –same time.
· No water· No Atmosphere – Without atmosphere there can be no weather
· Temperatures hot day 100° - cold night -175°
|Features of the Moon|| · Galileo Galilei – 1st person to view the moon through
a telescope (1609)
· Highlands – mountain ranges on the moon
· Maria – dark lowland plains – named after mare, the Latin word for seas because from Earth they looked like water
· Craters – hundreds of craters – the largest is called Copernicus – Most craters are in the highlands. Formed by many meteorites crashing into Moon’s surface – some are the result of volcanic activity.
· Rilles – long valleys on the moon – Hadley Rille
is one of the longest. Since there was no water on the moon, they must
have formed from volcanic activity or moonquakes
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