Slide 1 Slide 2  Perihelion – when a planet is closest to the sun in its orbit.  Aphelion – when a planet is farthest from the sun in its orbit.  Ellipse –…

Slide 1 Solar System Geocentric = Earth (geo) is center of universe Heliocentric = Sun (helio) is center of universe Which is correct? Heliocentric… proved by Copernicus…

Slide 1 BIG IDEA 3 : THE ROLE OF THEORIES, LAWS, HYPOTHESES, AND MODELS Description : The terms that describe examples of scientific knowledge, for example; "theory,"…

Slide 1The Solar System Slide 2 What is the Solar System? The solar system includes our sun, and all the matter that orbits the sun. Planets, moons, dust and other debris…

Slide 1 Slide 2 Throughout most of their classical history, the Greeks were never unified politically or militarily. They were simply a group of independent city-states that…

Slide 1 “If a nation expects to be ignorant and free, it expects what never was and never will be.” Thomas Jefferson “the most important bill in our whole code is that…

Slide 1 The Solar System Slide 2 Chapter 29 The Solar System Section 29.1 “Models of the Solar System” Slide 3 29.1 Objectives What are the similarities and differences…

Slide 1 The Solar System Observing the Solar System The Sun The Inner Planets The Outer Planets Comets, Asteroids, and Meteors Is There Life Beyond Earth? Table of Contents…

Slide 1 Astronomy Slide 2 History of Astronomy Geocentric: _________________________ _________________________ Theory that Earth was at the center of the solar system Geocentric…

Inbox: Make sure you have the following vocabulary words in your sourcebook: Heliocentric Geocentric Scientific method Hypothesis Natural law Social contract Natural right…