Page# 130 January 30Focus: Pre-Assessment to Space, The MoonObj.: 6.E.1.1 , I will be able to assess my prior
knowledge and explain the phases of the moon.
Homework: read and answer questions, studyWarm-Up:Choose one poster hanging up on the walls.
Write down the message and describe it. Then explain the message.
* Get your test binder
Test Binder
• How am I doing? Page of your 3rd quarter section.• Record:Date Title Grade Parent
Signature
Space Pre-Assessment
• Name: ____________• Date : ____________• Block : ____________• Title: Pre-Assessment of Space Obj., 6.E.1.1
A look at our nearest neighbor in Space!
The Moon
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What is the Moon?• A natural satellite (something
that orbits a planet)
• One of more than 96 moons in our Solar System
–For example, Jupiter has 63 moons!
• Planet Earth only has one moon, so we call it THE Moon.
The Moon’s Surface
• No atmosphere• No liquid water• Extreme
temperatures– Daytime = 130C
(265°F)
– Nighttime = -190C (-310 F)
• 1/6 Earth’s gravity
How Can We See the Moon?
• Sunlight shines on the moon!–Just like Earth, the moon
has a “day” and “night”–The sun shines on only half
of the moon at one time.
It’s Just a Phase• Moonlight is reflected
sunlight
• Half the moon’s surface is always reflecting light
• From Earth we see different amounts of the Moon’s lit surface
• The amount seen is called a “phase”
earth
moon orbit`searth
last (third)quarter
gibbous moon
full moon
gibbous moon
first quarter
crescent
new moon
crescent
waning Moon
waxing Moon
SUN
Waxing and Waning
• As the moon revolves around the sun, we see different amounts of the “lit up side”
• When we see MORE of the lit side, it’s WAXING
• When we see LESS of the lit side, it’s WANING
Right Light, Waxing
• WAXING: When we start to see MORE of the lit side of the moon
• The moon starts to look “bigger”
Left Lit, Waning• WANING: When we start to see
LESS of the lit side of the moon
When the moon starts to look
“smaller”
Moon Phases
• When the bright part is getting bigger, the Moon is waxing.
• When it is getting smaller, the Moon is waning.
• When the Moon is more than half-lit, it is called a gibbous Moon.
• When the moon is less than half-lit, it is called a crescent Moon.
Why does the moon have phases?
• The revolution of the Moon around the Earth causes the Moon to appear to have phases.
NSF North Mississippi GK-8
8 Phases of the Moon• New Moon
• Waxing Crescent
• First Quarter
• Waxing Gibbous
• Full Moon
• Full Moon
• Waning Gibbous
• Third Quarter
• Waning Crescent
• New Moon
New Moon• The moon is not
visible from Earth. The moon is between the Sun and the Earth.
• The dark side is facing us.
• This phase lasts one night.
Waxing Crescent• Waxing means that the
bright side is increasing. The right side is the bright side.
• Less than one half of the moon is illuminated.
• This phase includes any visible moon from a small sliver to almost half.
First Quarter• The entire right side of
the moon is illuminated.
• The moon looks like a half circle.
• The illuminated side is increasing.
• This phase only lasts one night.
Waxing Gibbous• Gibbous means that
more than one half is visible, but it is not quite full.
• This phase includes the night after the first quarter to the night before the full moon.
Full Moon • The moon is full and bright. It looks like a large circle.
• The illuminated side is facing us.
• Only happens once every 29 nights.
Waning Gibbous • The moon appears more than half but not quite full.
• Waning means that the illuminated side is decreasing.
• The left side is the bright side.
NSF North Mississippi GK-8
Last Quarter or Third Quarter
• Left Half of the moon is illuminated.
• The illuminated side is decreasing.
• This phase also only lasts for one night.
Waning Crescent
• Less than one half of the moon is illuminated.
• The moon will continue to become smaller and smaller.
New Moon• The moon is not
visible from Earth. The moon is between the Sun and the Earth.
• The dark side is facing us.
• This phase lasts one night.
Waxing Crescent
• Waxing means that the bright side is increasing. The right side is the bright side.
Page# 132 January 31Focus: Phases of the MoonObj.: 6.E.1.1 , I will be able to assess and apply
my knowledge of the phases of the moon.Homework: study, contract due tomorrowWarm-Up:Next slide
Work on Tasks• http://www.youtube.com/watch?v=Nx6DKb
PxWvY&list=PLE3E7DD60A93821CC
Tonight’s Moon…?
Homework: Tonight, go outside and find the moon.
What phase is it in?
Write or draw the answer on page 58.