The Moon: Phases, Tides and
Eclipses
Do Now: Why does the moon look like it changes?
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GOAL
• To be able to describe the
bodies found in our solar system
and the way in which they move
Moon Phases
• Moon
Phases
• 1. Moons rotation and revolution
both = 27 1/3 days (only see one
side of moon)
Moon Phases
• Moon
Phases
• 2. Lit by light reflected from sun
Moon Phases
• Moon
Phases
• 3. Phases = portion of moon lit
depending on positions of moon,
sun, Earth
Sketch the Moon’s Phases
Sketch the Moon’s Phases
Sketch the Moon’s Phases
Moon’s Phases
Moon’s Phases
Moon’s Phases
• Websites
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Actual Moon Live Image
Actual Moon Live Image 2
Current Moon Phase Calendar
Moon Phase Simulator
Moon Phases for any Day in the
Past
• Interactive Moon Phase Odyssey
Tides: Caused by the Moon
• Tides on
Earth
• 1. Tides caused by moon’s gravity
pulling on the ocean
Tides: Caused by the Moon
• Tides on
Earth
• 2. Two high tides and two low
tides everyday
Tides: Caused by the Moon
• Tides on
Earth
• 3. High tide= ocean directly
facing moon and on opposite side
of Earth
– Earth’s rotation causes a “bulge”
Tides: Caused by the Moon
• Tides on
Earth
• 4. Low tide occurs at points on
Earth at right angles to the moon
(sides of Earth)
Tides
• Websites
• What causes the tides?
• Tide Animation
Eclipses
• Solar
Eclipse
• 1. Moon passes between sun and
Earth (in a straight line)
Eclipses
• Solar
Eclipse
• 2. Sun looks like a dark circle with
a halo (moon’s shadow)
Eclipses
• Solar
Eclipse
• 3. Partial eclipse- people in moon’s
outer shadow cast onto earth see
this
Eclipses
• Solar
Eclipse
• 4. Total eclipse- people in moon’s
inner shadow cast onto earth see
this
Why are solar eclipses only visible in
some parts of the world?
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Eclipses
• Lunar
Eclipse
• 1. Moon moves into Earth’s
shadow (Earth between moon and
sun)
Eclipses
• Lunar
Eclipse
• 2. Moon turns red because sun’s
rays bend around Earth to reach
moon
What causes an eclipse of the
moon?
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decompressor
are needed to see this picture.
Eclipses
• Websites
• Lunar Challenge
Eclipses
• Assessment
• Complete the moon phase and
eclipse handout questions
Worksheet Answers
• Moon
Phases
•
•
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1. Phases
2. Sun
3a. 1/2
3b. No
4. Full
5. New
6. Quarter
7. Crescents
8. Gibbous
Worksheet Answers
• Eclipses
• Lunar
–
–
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1.
2.
3.
4.
5.
6.
F
B
D
C
A
E
Worksheet Answers
• Eclipses
• Solar
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1.
2.
3.
4.
5.
6.
C
D
B
A
Umbra
Penumbra