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The Moon

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dayle westhora

on 10 May 2016

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Transcript of The Moon

The Moon
What is the origin of the moon?
Scientists have suggested many possible hypotheses:
1. Did Earth at one time spin so fast that the material the moon is made of was thrown off?
2. Was the moon formed elsewhere in the solar system and captured by Earth's gravity?
3. Was the moon formed near Earth at the same time?
4. Did a planet the size of Mars collide with Earth forcing material out and forming the moon?
Rotation and Orbit
1. The Moon revolves around Earth and rotates on its own axis.
2. It takes the Moon about 27.3 days to revolve around Earth.
3. The Moon rotates slowly on its own axis once every 27.3 days
4. A "day" and a "year" on the moon are the same length.
Phases of the Moon
1. When you see the moon in the sky, sometimes it appears round, thin sliver or crescent
2. The different shapes of the moon you see from Earth are called phases.
3. The moon goes through its whole set of phases each time it revolves around Earth.
Apollo Missions
Beginning in 1959, the Soviet Union and the United States sent a series of robot spacecraft to examine the moon in detail. The ULTIMATE GOAL...landing on the moon.

1. Apollo 1 - 27 Jan 1967 - tragedy on launch pad
2. Apollo 11 - 20 July 1969 (4 days)
3. Apollo 12 - 19 Nov 1969 (5 days)
4. Apollo 13 - 11 April 1970 - malfunctioned
5. Apollo 14 - 5 Feb. 1971 (4 days)
6. Apollo 15 - 30 July 1971 (8 days)
7. Apollo 16 - 20 April 1972 (7 days)
8. Apollo 17 - 11 Dec 1972 (8 days)
Eclipses of the Moon
In most months the moon revolves completely around Earth without the moon moving into Earth's shadow or the moon's shadow hitting Earth.
When the moon's shadow hits Earth or Earth's shadow hits the moon, an eclipse occurs.
An
eclipse

occurs when an object in space comes between the sun and a third object and casts a shadow on that object
.
Tides
People who spend time near the ocean see the effects of tides, the rise and fall of water, every 12.5 hours.
The force of
gravity
pulls the moon and Earth toward each other. The force of gravity between two objects depends on the masses of the objects and the distance between them.
Tides occur mainly because of differences in how much the moon pulls on different parts of Earth.
What now...On January 14, 2004, President George W. Bush gave an inspirational speech regarding space exploration.
"Returning to the Moon is an important first step for our space program. We can use our time on the Moon to develop and test new approaches and technologies and systems that will allow us to function in other, more challenging environments.
Space Shuttle Program
Since 1981, NASA space shuttles have been rocketing from the Florida coast into Earth orbit. The five orbiters — Columbia, Challenger, Discovery, Atlantis and Endeavour — have flown more than 130 times, carrying over 350 people into space and travelling more than half a billion miles, more than enough to reach Jupiter.
The Moon's Qualities:
1. The moon gives off NO light; the moon reflects the sun's light
2. The moon's radius = 1,079.6 miles
3. The moon's gravity = 1/6 of Earth's
4. The moon's temperature = -280 F to 260 F facing the sun
5. The moon is slowly moving away from Earth at 1 1/2 inches per year
6. The moon has no substantial atmosphere
7. The first orbit of the moon - 1959 by the Soviet Union in a spacecraft called the Luna 3
Full transcript