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“Big Idea” Question

Review Concepts

Check-In Questions

Teacher Demo

Vocabulary

    • Student-Friendly Definition
    • Examples & Non-Examples
    • Morphological Word Parts

Simulation/Activity

Intro

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Models of the Solar System

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Intro

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Geocentric

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Intro

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Heliocentric

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Intro

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Big Question: What is the difference between heliocentric and geocentric models of the solar system and why is it important to understand them?

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Demonstration

Geocentric vs. Heliocentric Model of the Universe

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Aristotle and Ptolemy proposed and supported the Geocentric model of the solar system where the ______ is at the center of the solar system.

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Aristotle and Ptolemy proposed and supported the Geocentric model of the solar system where the Earth is at the center of the solar system.

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Geocentric means ______ ______.

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Geocentric means Earth centered.

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In 1543, ______ proposed the Heliocentric model of the solar system.

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In 1543, Copernicus proposed the Heliocentric model of the solar system.

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The Heliocentric model of the universe states that the ______ is at the center of the solar system.

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The Heliocentric model of the universe states that the sun is at the center of the solar system.

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The Solar System: the sun with all the planets and other bodies that revolve around it

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Planet: a body or object in space that revolves around a star and has a spherical shape

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Moon: an object that revolves around a planet and reflects light from the sun

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What is a solar system?

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What is a planet?

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What is a moon?

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Geocentric Model

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Geocentric Model: model of the universe in which the earth is at the center and the sun, moon, stars, and planets orbit around the earth

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What does the geocentric model state?

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Two observations

1. The stars, planets, and sun seemed to orbit based on earth’s night and day

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Two observations

2. As you stand on the earth it feels stable and unmoving, everything must be moving around it

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Ptolemy

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  • Mathematician
  • Astrologer
  • Geographer
  • Astronomer
  • Born 100 AD in Egypt

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Most advanced model of the Geocentric system

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New model in the 16th century

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What is at the center of the Geocentric Model?

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All of these are observations that supported geocentric theory except:

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  1. The stars, planets, and sun seemed to orbit based on earth’s night and day.
  2. The sun was larger than earth, so it took longer to orbit earth than the planets.
  3. As you stand on the earth it feels stable and unmoving, everything must be moving around it.

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All of these are observations that supported geocentric theory except:

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  1. The stars, planets, and sun seemed to orbit based on earth’s night and day.
  2. The sun was larger than earth, so it took longer to orbit earth than the planets.
  3. As you stand on the earth it feels stable and unmoving, everything must be moving around it.

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Who was the famous mathematician, geographer, astronomer, and astrologer who helped discover geocentric theory?

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Which of these is an example of a geocentric model?

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Which of these is an example of a geocentric model?

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Geocentric

Geo

centric

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Geocentric

Geo

centric

Earth

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Geocentric

Geo

centric

at the center

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Geocentric

Geo

centric

Earth at the center

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How can we use the word parts of geocentric to help us remember the definition of the term?

Geocentric

Geo

centric

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What is the geocentric model?

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What are the two observations that “support” geocentric theory?

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Who was the famous mathematician, geographer, astronomer, and astrologer who helped discover geocentric theory?

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Remember!!!

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Geocentric Model: model of the universe in which the earth is at the center and the sun, moon, stars, and planets orbit around the earth

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Big Question: What is the difference between heliocentric and geocentric models of the solar system and why is it important to understand them?

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This Video Was Created With Resources From:

Questions or Comments

​

Michael Kennedy, Ph.D. MKennedy@Virginia.edu

Rachel L Kunemund, Ph.D. rk8vm@virginia.edu

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“Big Idea” Question

Review Concepts

Check-In Questions

Teacher Demo

Vocabulary

    • Student-Friendly Definition
    • Examples & Non-Examples
    • Morphological Word Parts

Simulation/Activity

Intro

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Heliocentric

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Intro

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Big Question: What is the difference between heliocentric and geocentric models of the solar system and why is it important to understand them?

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The Solar System: the sun with all the planets and other bodies that revolve around it

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Planet: a body or object in space that revolves around a star and has a spherical shape

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Geocentric Model: model of the universe in which the earth is at the center and the sun, moon, stars, and planets orbit around the earth

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What is a solar system?

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What is a planet?

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What is the geocentric model?

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Heliocentric Model

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Heliocentric Model: model of the universe in which the sun is at the center and the stars and planets orbit the sun

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What is the heliocentric model?

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Copernicus

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  • Mathematician and astronomer
  • From Poland in 16th Century
  • Created initial Heliocentric Theory

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Galileo

Kepler

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Heliocentric Model: model of the universe in which the ____ is at the center and the stars and planets orbit the sun

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Heliocentric Model: model of the universe in which the sun is at the center and the stars and planets orbit the sun

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Who developed the heliocentric model?

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Why isn’t this an example of a heliocentric model?

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Heliocentric

Helio

centric

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Heliocentric

Helio

centric

Sun

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Heliocentric

Helio

centric

at the center

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Heliocentric

Helio

centric

Sun at the center

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How can we use the word parts of heliocentric to help us remember the definition of the term?

Heliocentric

Helio

centric

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What is the heliocentric model?

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Who developed the heliocentric model?

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Which is the current accepted model of the solar system?

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Which is the current accepted model of the solar system?

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Remember!!!

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Heliocentric Model: model of the universe in which the sun is at the center and the stars and planets orbit the sun

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Big Question: What is the difference between heliocentric and geocentric models of the solar system and why is it important to understand them?

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This Video Was Created With Resources From:

Questions or Comments

​

Michael Kennedy, Ph.D. MKennedy@Virginia.edu

Rachel L Kunemund, Ph.D. rk8vm@virginia.edu