earth & moon mr. skirbst physical science topic 28
TRANSCRIPT
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Earth & Moon
Mr. SkirbstPhysical Science
Topic 28
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Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
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Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”
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Features of the Moon
Galileo Galilei (1609) first to observe moon through telescope
He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”
He observed light areas that were mountainous and called them highlands
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Features of the Moon
Craters – circular features ranging from microscopic to hundreds of kilometers across
Most due to impacts of material from space, some result from volcanic activity
Most are on “far side” of moon
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Features of the Moon
Rilles – long valley on moon’s surfaceCould be due to past volcanic activty
Hadley Rille visited by Apollo astronauts
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Movement of the Moon
The moon orbits the Earth
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Movement of the Moon
The moon orbits the EarthPerigee – closest to EarthApogee – farthest from Earth
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Movement of the Moon
The moon orbits the EarthPerigee – closest to EarthApogee – farthest from EarthPeriod of Rotation = Period of Revolution* Same side always faces Earth *
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Phases of the Moon
Apparent changes to the moon’s illumination due to its orbit around the Earth
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Phases of the Moon
New Moon:
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Phases of the Moon
Waxing Crescent:
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Phases of the Moon
First Quarter:
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Phases of the Moon
Waxing Gibbous:
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Phases of the Moon
Full Moon:
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Phases of the Moon
Waning Gibbous:
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Phases of the Moon
Last Quarter:
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Phases of the Moon
Waning Crescent:
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Tides on Earth
Rise and fall of oceans due to pull of moon
High Tide:
Low Tide:
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Tides on Earth
Spring Tide: Neap Tide:
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Eclipses
Solar Eclipse:
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Eclipses
Lunar Eclipse: