McGraw-Hill OnlineMcGraw-Hill Higher EducationLearning Center
Student Center | Instructor Center | Information Center | Home
Interactives
Additional Animations
Astronomy Timeline
Career Center
Universally Speaking
Additional Weblinks
Message Board
Constellation Quiz
NetTutor
Outline
Chapter Overview
Essay Questions
Questions for Review
Problem Solving
Online Quiz
Flashcards
Crossword Puzzle
Math Help
Web Tutorial
Animations
Web Links
Feedback
Help Center


Explorations: Stars, Galaxies, and Planets
Thomas Arny, University of Massachusetts
The Outer Planets

Essay Questions



1

Why do some astronomers think that Pluto should not properly be considered a planet? Do you agree?
2

If Jupiter were moved closer to the Sun, what do you think would happen to it?
3

Why is it not surprising that Uranus and Neptune have proportionally less hydrogen than their more massive companions, Jupiter and Saturn?
4

Why do the relatively uncratered surfaces of Europa and Enceladus imply that these moons may have been “active” recently?








Copyright2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.