10/29/2012
Mrs. McFarland’s & Mr. Gluckin’s Science Class Connect Session
10/29/12
While you wait for class to start write down as many words you can our of the term: MOON PHASE
Make a list and we’ll see how many we can come up with! 199!
And that’s just the words that are four letters or more!
There are 274(!) if you use all the one‐three letter words too!
Please do the Audio Setup Wizard !
Earth and Space Sciences
Describe how objects in the solar system are in regular and predictable motions that explain such phenomena as days, years, seasons, eclipses, tides and moon cycles.
Corresponding Study Island lesson is:
SI 2d
Please complete the above Study Island assignments by 4pm Thursday.
Student Centered Objectives
I will be able to identify the phases of the moon.
I will understand the relationship of the moon and our changing tides.
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Review Ground Rules for Classes
Success Tip: Key Words
Learn about Moon Phases
Pop quiz time
Tides
Pop quiz time
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Today’s Slides
Your Questions
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Be respectful of each other
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10/29/2012
At the end of class you should be able to describe how objects in the Solar System are in regular and predictable motions which explain these things:
Days
Moon Phases
Seasons
Years
TIDES
Eclipses
Key Words:
Rotation, Revolution, Axis, Seasons, Waxing, Waning, Quarter, Crescent, Gibbous,
Full Moon, New Moon, Lunar Eclipse, Solar Eclipse, Spring Tides, Neap Tides
Half of the Moon is always lit by the Sun. But because the Moon is
revolving around the Earth, the amount of that lit portion we can see
from Earth constantly changes.
The Moon orbits, or revolves around, the Earth, and it also revolves
around the Sun as part of the Earth-Moon system. It takes the Moon
about one to revolve once around the Earth (that’s once about every 28
days) . These changes give us the phases of the Moon. The Moon
makes one complete cycle every 29½ days
Phases of the Moon Rap song:
http://www.youtube.com/watch?v=79M2lSVZiY4&playnext=1&list=PL6E4FC14DBC08F
CB6&feature=results_video
As the Moon orbits the Earth, different parts of the Moon are lit by the Sun, and different
amounts of the lit surface are visible from the Earth. This diagram shows how each
phase corresponds to the Moon's orbital position and to the part of the Moon being lit by
the Sun.
As shown in the earlier diagram, the new moon occurs when the moon is positioned between the Earth and Sun. The entire illuminated portion of the moon is on the back side of the moon, the half that we cannot see. What do we call the predictable
change in how much of the Moon’s
lit portion to we see from Earth
called?
Answer:
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10/29/2012
What do we call the predictable
change in how much of the Moon’s
lit portion to we see from Earth
called?
Full Moon
Answer:
Phases of the Moon
First and Third Quarter
Once you understand those four key moon phases, the phases between should be fairly easy to visualize, as the illuminated portion gradually transitions between them. An easy way to remember and understand those "between" lunar phase names is by breaking out and defining 4 words: crescent, gibbous, waxing, and waning. The word crescent refers to the phases where the moon is less that half illuminated. The word gibbous refers to phases where the moon is more than half illuminated. Waxing essentially means "growing" or expanding in illumination. Waning means "shrinking" or decreasing in illumination. So to summarize……
Thus you can simply combine the two words to create the phase name: After the new moon, the sunlit portion is increasing, but less than half, so it is waxing crescent.
(Wax on to make it a little bit brighter )
After the first quarter, the sunlit portion is still increasing, but now it is more than half, so it is waxing gibbous. After the full moon (maximum illumination), the light continually decreases. (The waning light.)
So the waning gibbous phase occurs next. Following the third quarter is the waning crescent, which wanes until the light is completely gone ‐‐ a new moon. During each lunar orbit (a lunar month), we see the Moon's
appearance change from not visibly illuminated through
partially illuminated to fully illuminated, then back through
partially illuminated to not illuminated again. Although this
cycle is a continuous process, there are eight distinct,
traditionally recognized stages, called phases.
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10/29/2012
The diagram models Earth
and the moon in two
positions of its orbit.
The diagram models Earth
and the moon in two
positions of its orbit.
The arrows indicate the
direction of light from the
sun.
In the chat box Identify
what phase the moon will
be seen from Earth when
the moon is in position X
and Z.
The arrows indicate the
direction of light from the
sun.
In the chat box Identify
what phase the moon will
be seen from Earth when
the moon is in position X
and Z.
Answer:
X = 3rd Quarter
Z = new moon
The tides of the ocean result from the gravitational pull on the Earth by the Sun and the
Moon.
http://sciencenetlinks.com/interactives/moon/moon_challenge/moon_challenge.html
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Tides are created because the Earth and the moon are attracted to each other, just like magnets are attracted to each other. The moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it. Each day, there are two high tides and two low tides. The ocean is constantly moving from high tide to low tide, and then back to high tide. There is about 12 hours and 25 minutes between the two high tides.
Tides are a rhythmic rising and falling of sea levels due to gravitational forces from the
Moon and Sun. Though the Sun is far more massive, the Moon has a greater effect on
the Earth's tides because it is so much closer to Earth. However, the gravity
between the Earth and the Sun influences the tides as well
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There are both daily and monthly patterns to the tides. The daily patterns are due to the rotation of the Earth about its axis. As the planet rotates about its axis, the Moon's gravity exerts the greatest pull on the side of Earth that faces the Moon. When that area is an ocean, the Moon's gravity pulls the water "upward." In fact, the water forms a "dome" above the Earth's surface as it is pulled toward the Moon. When a body of water is in a "dome" phase, this is called high tide.
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10/29/2012
When the sun and moon are not aligned (during quarter moons), the gravitational forces cancel each other out, and the tides are not as dramatically high and low. These are called neap tides. 
High tides happen twice a day, about 12 hours apart because they happen on both sides of the globe. About 6 hours after a high tide, there is a low tide. At low tide, ocean water pulls back much farther from the beach and shore.
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When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have nothing to do with the season. 
The monthly tidal patterns are due to the Moon's orbit around Earth. Spring tides generally occur twice a month—
during new and full moons, when the Earth, Sun, and Moon line up in a row. In this arrangement, the gravities of the Sun and Moon work together and have the strongest pull on Earth. This produces the largest difference between high and low tide.
Spring tides occur during the full moon
and the new moon.
Neap tides occur during quarter moons.
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10/29/2012
What is the tide that occurs twice
daily when a body of water is at its
highest level called?
What is the tide that occurs twice
daily when a body of water is at its
highest level called?
Answer:
Answer:
High tide
What is the tide that occurs twice
daily when a body of water is at its
lowest point called?
What is the tide that occurs twice
daily when a body of water is at its
lowest point called?
Answer:
Answer:
Low tide
Now you should be able to describe how objects in the Solar System are in regular and predictable motions which explain these things:
Days
Moon Phases
Seasons
TIDES
Eclipses
File Transfer Key Words
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10/29/2012
1.
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3.
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