MOON PHASES
Phases of the Moon
satellite
• the moon is a natural ________
of Earth
reflected light
• moonlight is _________
from the ___________
sun
29.5
• it takes the moon __________
revolve
days to ___________around
the
Earth
___________
lunar
• this is known as a __________
month
• as it travels around the Earth,
the amount of the moon’s
surface seen from the Earth
_________,
varies resulting in different
phases
moon __________
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Phases of the Moon
• however it also takes the moon 29.5
•
•
•
•
rotate
axis
days to _________
once on its ______
synchronous rotation
a.ka.________________
same side of
because of this, the _________
the moon always faces the Earth
the moon appears to rise in the
east
__________
and to set in the
west
__________,
because of the Earth’s
rotation
__________
horizon
the moon rises over the _________
50
about __________
minutes later each
day
this is because as the moon moves
Earth the Earth
further around the ________,
has to rotate slightly more
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Phases of the Moon
waxing : moon getting
bigger
• light on right side
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waning : moon getting
smaller
• light on left side
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Phases of the Moon
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Phases of the Moon
March 26, 2015
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Phases of the Moon
March 26, 2015
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Phases of the Moon
March 26, 2015
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Phases of the Moon
March 26, 2015
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Phases of the Moon
March 26, 2015
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Phases of the Moon
March 26, 2015
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Phases of the Moon
Image from
Earth
Position
3
Name of
Phase
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full
moon
1
waxing
half moon
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8
waxing
crescent
5
waning
half moon
Phases of the Moon
Image from
Earth
Position
Name of
phase
March 26, 2015
2
7
4
waxing
gibbous
new
moon
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waning
gibbous
6
waning
crescent
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THE MOON
March 26, 2015
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MOON FACTS
Period of rotation
29.5 Earth days
Length of one Moon day
2 Earth weeks
Length of one Moon night
2 Earth weeks
Surface temperature (daytime high)
100oC
Surface temperature (nighttime low)
- 170oC
Lunar mass
1/
81
Lunar gravity
1/
6
Lunar diameter
¼ of Earth’s diameter
Magnetic Field (no iron core)
none
Atmosphere
none
Colour of daytime sky
black
Number of Moon Landings
6
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of Earth’s mass
of Earth’s gravity
March 26, 2015
MOON FACTS
1st
Person on the Moon:
Neil Armstrong
July 20th, 1969 (Apollo 11
mission)
Surface Features:
covered with fine, gray, compacted dust
scattered with small and large rocks
no surface water
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March 26, 2015
MOON FACTS
Moon Craters
circular depressions
surrounded by
mountains
formed from impact
of meteorites hitting
the lunar surface
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MOON FACTS
Mares:
Latin name for sea
large, dark, flat, areas formed when lava flooded old craters when
moon was still hot
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SOLAR ECLIPSE
total
eclipse
sun
M
umbra
earth
partial
eclipse
earth
Solar eclipse:
moon shadow falls
________’s
earth
on the _______
penumbra
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March 26, 2015
SOLAR ECLIPSE
CORONA
March 26, 2015
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LUNAR ECLIPSE
moon
begins to
wane
sun
earth
umbra
Lunar eclipse:
earth shadow
________’s
falls on the
moon
_______
lunar
eclipse
moon
begins to
wax
penumbra
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March 26, 2015
LUNAR ECLIPSE
March 26, 2015
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Eclipses
So ... What is happening in this picture?
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Proposed Theories for the
Formation of the Moon
A. The Moon is composed of material that spun off from the outer
layers of the Earth.
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Proposed Theories for the
Formation of the Moon
B. The Moon was formed in orbit at around the same time the
Earth was forming.
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Proposed Theories for the
Formation of the Moon
C. The Moon was formed by the collision of the Earth and another
large object.
March 26, 2015
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Proposed Theories for the
Formation of the Moon
D. The Moon was formed elsewhere in the solar system and was
captured by the Earth’s gravity.
March 26, 2015
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Proposed Theories for the
Formation of the Moon
A. The Moon is composed of material that spun off from the outer
layers of the Earth.
B. The Moon was formed in orbit at around the same time the
Earth was forming.
C. The Moon was formed by the collision of the Earth and another
large object.
D. The Moon was formed elsewhere in the solar system and was
captured by the Earth’s gravity.
March 26, 2015
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HOMEWORK
1. Complete ‘Moon Worksheet’
March 26, 2015
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