the moon 2020 updated pdf...the orbit of the moon moon earth moon perigee apogee (closest point to...
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The Moon
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When did the MOON form?• When the moon formed, it was about 14,000 miles away from us. Now it is 250,000 miles away from us. • 1) The moon most likely formed at the same time as the Earth.
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2) proposes a Mars-sized asteroid collided with Earth 4.5 billion years ago.
Giant Impact Theory (The Big Whack)
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The “Man” on the Moon
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FACTS• The moon does not have an iron core 3) It is ¼ the size of the Earth.
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MOON FACTS4) The moon causes TIDES here on
earth.
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MOON FACTS5) The gravity of the moon is 1/6 that
of Earth’s gravity. If you weighed 100 lbs here, then you would weigh 16 lbs on the moon.
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Bay of Fundy, Nova ScotiaDifference between high tide and low tide
averages 55 feet every 6h 25m
TIDES CAUSED BY THE MOON (NO MOON, NO TIDES!)
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6) Spring Tide causes the highest HIGH tide and the LOWEST low tide 7) Spring Tide alignment – Earth Moon and Sun in a straight line 8) Occurs during new moon and full moon
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9) Neap tide occurs during 1st Quarter and 3rd Quarter 10) Earth-moon-sun at right angle
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CRATERS11) Large
round pits formed by impacts of asteroids
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12) 2 Types of terrain on the Moona) HIGHLANDS-
heavily cratered and very old
b) MARIA- dark, flat areas
• Maria is mostly on the near side. The far side of the moon is beaten up with asteroid impact craters.
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13) Terminator: Day-Night Line
Terminator
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Buzz Aldrin’s Footprint on the Moon
• The Moon’s surface is
covered with Regolith (dust)…. It varies between
1 inch – 15 km in depth.
• Powdered rock created by billions of
years of impacts.
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What is it like on the moon?14) no weather - no wind
15) no atmosphere to protect you from extreme temperatures of space.
16) Very cold (- 173 °C ) AND hot (+100 °C) 17) It has no magnetic field. Compasses
don’t work.
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MOTIONS OF THE MOON
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18) The moon rotates once thein the SAME time as it revolves. • Because of this,
you see the same side of the moon • A moon day = a
moon year. (1:1)
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The Orbit of the Moon
EarthMoon Moon Perigee (closest point to the Earth) Apogee
(farthest point from the Earth)
250,000 miles 225,000 miles
Average Orbital Velocity 2,000 mph
19) Average Distance from the
Earth
240,000 miles
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Lunar Eclipse• 20) A lunar eclipse happens when we look at the
moon and see Earth’s shadow and see the FULL moon.
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Solar Eclipse• 21) A solar eclipse is when you look at the sun
and see the NEW moon blocking the light of the sun.
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Solar eclipse
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