PPT Slide
3. Why do you think that the planets and their moons are spherical and not some other shape? (Hint: Assume that they were initially molten. What can you say about gravitational potential energy? Use a physics text if necessary.) How do you think a planet might get “out of round”?
4. Use your science book, an encyclopedia, or the Internet to list the various cloud types seen on Earth (including fogs!). What does the presence of a certain type of cloud tell you about the weather?