What does the word eminent mean? APOD. Famous and respected within a particular sphere or...
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DMA Answer: Eminent
Famous and respected within a particular sphere or profession.
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Great Discoveries: Astronomy
Write down:oName of each scientistoTheir discovery/contribution to
the study of astronomy
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DMA#2 12/6/12
Who first discovered other moons in the Solar System? Which planet do they orbit?
APOD
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Eminent Eight Project We will be learning about important
and “Revolutionary” astronomers Working in groups of 2 You will create a brochure about your
scientist Today you will read about your
scientist and begin organizing information o using the “Eminent Eight: Astronomer Biography
Form”
Tomorrow we will be in the library so you can fill in the gaps of information.
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DMA#3 12/10/12
What is one major difference in our understanding of the
universe now as compared to a few hundred years ago?
APOD
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Eminent Eight Today-
o Work on your brochures- you should finish with all research today
o Fill in information on your brochure- include all information from the research sheet. Be as detailed and clear as possible!
o Your brochures are due tomorrow. o If you print to the library-only print
ONCE
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Charity Drive Tomorrow-Food If we get over 60 items, we could win donuts and KR sunglasses!
That’s only 2 cans per person!
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DMA#4 12/11/12
Wh0 is your brochure about? What was his major
contribution to astronomy?
APOD
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Eminent Eight Today-
oFinish your brochuresoYour brochures are due TODAYo If you print to the library-only
print ONCE When done w/ brochure:
o“Astronomical Scientific Models”oBring your book and notebook to
the library
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DMA#5 12/12/12
What does it mean when we describe a scientist’s view of
the Solar system as heliocentric?
APOD
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Brochure Gallery Your brochures are placed
around the room Each scientist should have at
least 2 brochures describing their lives and work.
Your job is to use only the brochures to answer the provided questions.
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DMA#6 12/13/12
Which scientist described the 3 laws of planetary
motion?
APOD
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DMA#7 12/14/12
Who was the “Greatest naked-eye observer in the world”? Why was he called
that?
APOD
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Astronomical Scientific Models
Should be in the form of a flow chart
Each Scientist/group should have its own box describing:oTheir model or theory or law/formula
that describes the solar system or universe.
Use the flow chart to show the chronological order of the theories/models.
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Astronomical Scientific Models
Central African: The Moon and weather
Took careful observations of the moon
Figured out that the orientation of the points on the crescent moon coincided with the seasons.
Used the moon to keep track of the wet and dry seasons.
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Astronomical Scientific Models
Ancient Greek: Pre-Aristotle, Geocentric Ancient Greek:
Pre-Aristotle, Geocentric
Described the Solar system with the Earth at center- “Celestial Sphere”
Each planet was attached onto a sphere
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DMA#8 12/17/12
Why was Copernicus’s Heliocentric theory not widely accepted? Who
provided the evidence to change that?
APOD
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Model: Aristotle, Geocentric
Earth is spherical-its shadow showed on the moon during an eclipse
Said the Earth can’t be moving or clouds and birds and other objects would be left behind
Orbits must be circular because the heavens are perfect
Stellar parallax would exist if the Earth moved
All of these were proved false by Kepler
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Model: Ptolemy Earth centric Improved accuracy
of celestial predictions
Stated that each planet moved in a circle within its orbital path
Remained the standard for 1400 years, until Copernicus
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Model: Copernicus Heliocentric-First to propose
that Sun is the center, not Earth
This more easily explained the motion of the planets
However, he still held the belief that the orbits were perfect circles
wasn’t able to improve the prediction of planetary movement-still had the circles within circles
Not widely accepted
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Model: Kepler Built on the work of
Copernicus and Brahe Attempted to find a
model that would work based on circular orbits
His calculations were 8 arc minutes off of Tycho Brahe’s, but he couldn’t ignore it-he needed a new model of the Solar system
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Model: Kepler “Those eight minutes pointed
the road to a complete reformation in astronomy”
Summarized his ideas in 3 laws of planetary motion
1. Each planet’s orbit is an ellipse, with the Sun as one focus
2. As a planet moves around the Sun, it sweeps out equal areas in equal times
3. The orbital period is related to the distance from the Sun
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Model: Kepler Using the new laws,
Tycho Brahe’s observations were now explained
This was strong evidence in favor of Copernicus’s idea of a Sun-centered solar system
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DMA 12/19/12
How is the angular momentum of a planet conserved? (Kepler’s 2nd
law)
APOD
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DMA#1 1/3/13
How is the angular momentum of a planet conserved? (Kepler’s 2nd
law)Use your book to help
answer!! APOD
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To Do Today Kepler’s law worksheet-only
do #1-7 of the first page, don’t do the rest of the packet.
Answer in your notebooks:oPg 149 #9-13, 15
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DMA#2 1/4/13
Restate Kepler’s 3rd law in your own words. How is this
law useful to scientists?
APOD
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Due Monday Kepler’s laws of motion
vocabulary Kepler’s law worksheet-only
do #1-7 of the first page Book questions: Pg 149 #9-13,
15 Unit review