ASTRONOMY: Chapter 2

A studyguide for the Chapter 2 Science Test -- Astronomy

13 cards | Total Attempts: 190 | Created by citrusfruit7 | Last updated: Sep 17, 2015 | Total Attempts: 190

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Aristotle And Ptolemy Thought That _____ Is At The Center Of The Solar System

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Astronomy Exam #1

Front	Back
Aristotle and Ptolemy thought that _____ is at the center of the solar system	Earth
Copernicus thought that the ___ is at the center of the planets. _______'s observations supported Copernicus's theory.	Sun Galileo
______ discovered that the orbits of the planets are ________.	Kepler Ellipses
Newton concluded that two factors - _______ and _______ - combine to keep the planets in orbit	Inertia&Gravity
The sun's energy comes form _______ ______.	Nuclear Fusion
The sun's atmosphere has three layers: the ___________, the ____________, and the ______.	Photosphere Chromosphere Corona
Features on or above the sun’s surface include ________, ___________, and _____ ______.	Sunspots Prominences Solar Flares
The four inner planets – Mercury, Venus, Earth, and Mars- are _____ and have _____ surfaces. They are often called the __________ planets.	Small rocky terrestial
The four outer planets – Jupiter, Saturn, Uranus, and Neptune – are much larger than _____, and are made almost entirely of _____.	Earth Gases
STUDY VENN DIAGRAM	STUDY VENN DIAGRAM
Comets are chunks of ___ and ____ that usually have long, _________ orbits.	Ice Dust Elliptical
Most _________ are objects that revolve around the sun between the orbits of ____ and _______.	Asteroids Mars Jupiter
__________ usually come from comets or asteroids.	Meteoroids