Prehistoric and Classic Astronomy. Warm Up Questions CPS Questions (1-2) Chapter 1, Lesson 1.
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Transcript of Prehistoric and Classic Astronomy. Warm Up Questions CPS Questions (1-2) Chapter 1, Lesson 1.
Prehistoric and Classic AstronomyPrehistoric and Classic AstronomyPrehistoric and Classic AstronomyPrehistoric and Classic Astronomy
Warm Up QuestionsWarm Up Questions
CPS Questions (1-2)CPS Questions (1-2)
Chapter 1, Lesson 1
Chapter OverviewChapter OverviewChapter OverviewChapter Overview
Prehistoric and Classical AstronomyPrehistoric and Classical Astronomy Astronomy and the RenaissanceAstronomy and the Renaissance The Enlightenment and Modern The Enlightenment and Modern
AstronomyAstronomy
Chapter 1, Lesson 1
Lesson OverviewLesson OverviewLesson OverviewLesson Overview
Celestial SphereCelestial Sphere Greek Earth-Centered ModelGreek Earth-Centered Model Ptolemy’s ModelPtolemy’s Model
Chapter 1, Lesson 1
Quick WriteQuick WriteQuick WriteQuick Write
What does Eratosthenes’ experience in What does Eratosthenes’ experience in measuring the Earth tell you about what’s measuring the Earth tell you about what’s
needed for scientific discoveries? needed for scientific discoveries?
(Note to teacher: Use “Pick a Student” button in CPS)(Note to teacher: Use “Pick a Student” button in CPS)
Chapter 1, Lesson 1
Chapter 1, Lesson 1
The Celestial SphereThe Celestial SphereThe Celestial SphereThe Celestial Sphere
Celestial sphere refers to an imaginary sphere of heavenly objects that seems to center on the observer North Celestial PoleSouth Celestial PoleConstellation
Courtesy of NOAO/AURA/ASF
Chapter 1, Lesson 1
The Celestial SphereThe Celestial SphereThe Celestial SphereThe Celestial Sphere
It takes the Sun about 365.25 days to revolve around the celestial sphere
The ecliptic is the name for the Sun’s apparent path among the stars around the Earth
The zodiac is the group of constellations the Sun passes through on its apparent path along the ecliptic
Chapter 1, Lesson 1
The Moon’s PhasesThe Moon’s PhasesThe Moon’s PhasesThe Moon’s Phases
The Moon does orbit the Earth
Earth’s gravity holds the Moon in such a firm grip that it always keeps the same face turned toward the Earth
Chapter 1, Lesson 1
The Moon’s PhasesThe Moon’s PhasesThe Moon’s PhasesThe Moon’s Phases
© J. Gatherum/ShutterStock, Inc.
Chapter 1, Lesson 1
Observing Planetary MotionObserving Planetary MotionObserving Planetary MotionObserving Planetary Motion
Retrograde Motion
Planets move in elliptical, not circular orbits
Revolve around the Sun, not Earth
The Greek Earth-Centered ModelThe Greek Earth-Centered ModelThe Greek Earth-Centered ModelThe Greek Earth-Centered Model
Thales of MileusThales of MileusStars are not godsStars are not gods
PythagorasPythagorasSpherical EarthSpherical Earth
Aristotle – 322 BCAristotle – 322 BCPlaced the Earth at the center of thingsPlaced the Earth at the center of thingsParallax Parallax is is the apparent shifting of nearby the apparent shifting of nearby objects with respect to distant ones as the objects with respect to distant ones as the position of the observer changesposition of the observer changes
Chapter 1, Lesson 1
Ptolemy’s ModelPtolemy’s ModelPtolemy’s ModelPtolemy’s Model
Claudius Ptolemy – AD 150Claudius Ptolemy – AD 150Ptolemy believed that heavenly bodies Ptolemy believed that heavenly bodies
(planets and stars) were perfect, in contrast to (planets and stars) were perfect, in contrast to earthbound objects earthbound objects
The universe was based on perfect circlesThe universe was based on perfect circles AnAn epicycle epicycle is is the circular orbit of a the circular orbit of a
planet, the center of which revolves planet, the center of which revolves around the Earth in another circlearound the Earth in another circle
Chapter 1, Lesson 1
Evaluating Ptolemy’s ModelEvaluating Ptolemy’s ModelEvaluating Ptolemy’s ModelEvaluating Ptolemy’s Model
StrengthsStrengths Fits evidence Fits evidence
available during his available during his lifetimelifetime
Includes testable Includes testable predictionspredictions
WeaknessesWeaknesses Assumed that Earth Assumed that Earth
was stationarywas stationary Theory of epicycles Theory of epicycles
was a departure from was a departure from simplicity and simplicity and symmetry symmetry
Chapter 1, Lesson 1
Learning CheckLearning Check
CPS Questions (3-4)CPS Questions (3-4)
Chapter 1, Lesson 1
Activity 1: Astronomy CrosswordActivity 1: Astronomy Crossword Activity 1: Astronomy CrosswordActivity 1: Astronomy Crossword
Chapter 1, Lesson 1
Use your textbook to identify the terms and people of prehistoric and classical astronomy to complete the crossword puzzle.
Refer to pages 6-18 in the textbook.
Activity 2: Testing Parallax Activity 2: Testing Parallax Activity 2: Testing Parallax Activity 2: Testing Parallax
Follow the step-by-step directions on Follow the step-by-step directions on your worksheet in order to test the your worksheet in order to test the concept of parallax.concept of parallax.
Then answer the questions about Then answer the questions about parallax on the worksheet.parallax on the worksheet.
Be prepared to share your answers Be prepared to share your answers with the class.with the class.
Chapter 1, Lesson 1
Activity 3: The Moon’s PhasesActivity 3: The Moon’s PhasesActivity 3: The Moon’s PhasesActivity 3: The Moon’s Phases
Chapter 1, Lesson 1
Work with your team to complete your worksheet on the Moon’s phases.
You may refer to page 13 in the textbook.
Technology Enrichment: Technology Enrichment: Sky Maps & ConstellationsSky Maps & ConstellationsTechnology Enrichment: Technology Enrichment:
Sky Maps & ConstellationsSky Maps & Constellations
1.1. Using the website link provided, Using the website link provided, download this month’s version and last download this month’s version and last month’s version of the Evening Sky Map month’s version of the Evening Sky Map for your geographic location. for your geographic location.
2.2. Follow the steps and answer the Follow the steps and answer the questions on the worksheet. You may questions on the worksheet. You may refer to pages 9-10 in your textbook.refer to pages 9-10 in your textbook.
Chapter 1, Lesson 1
ReviewReviewReviewReview
Celestial sphereCelestial sphere refers to refers to an imaginary sphere of an imaginary sphere of heavenly objects that seems to center on the heavenly objects that seems to center on the observerobserver
Earth’s gravity holds the Moon in such a firm grip Earth’s gravity holds the Moon in such a firm grip that it always keeps the same face turned toward that it always keeps the same face turned toward the Earththe Earth
The ancient Greeks looked for symmetry, order, The ancient Greeks looked for symmetry, order, and unity in the cosmos and unity in the cosmos
Thales of Miletus reasoned that the Sun and other Thales of Miletus reasoned that the Sun and other stars were not gods but balls of firestars were not gods but balls of fire
Chapter 1, Lesson 1
Review, cont.Review, cont.Review, cont.Review, cont.
Pythagoras proposed that the Earth is sphericalPythagoras proposed that the Earth is spherical Aristotle placed the Earth at the center of thingsAristotle placed the Earth at the center of things The Greek model of the universe that won the The Greek model of the universe that won the
widest acceptance was that of Claudius widest acceptance was that of Claudius Ptolemy; for 1,300 years, his model was the Ptolemy; for 1,300 years, his model was the conventional wisdom of the scientific worldconventional wisdom of the scientific world
Chapter 1, Lesson 1
Review QuestionsReview Questions
CPS Questions (5-6)CPS Questions (5-6)
Chapter 1, Lesson 1
SummarySummarySummarySummary
The Celestial SphereThe Celestial Sphere Greek Earth-Centered ModelsGreek Earth-Centered Models Ptolemy’s ModelPtolemy’s Model
Chapter 1, Lesson 1
Chapter 1, Lesson 1
Next…Next…Next…Next…
Done – Prehistoric and Classical Astronomy
Next – Astronomy and the Renaissance
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