1) Define an Astronomical Unit.

2) What attributes do the Jovian planets have in common?

3) Which planets were discovered in "modern" times? (After AD 1600.)

4) Why don't the objects in Saturn's or Jupiter's rings condense to make one or two large moons?

5) Why do comet's tails always point away from the sun?

6) List the Jovian planets in order of size, biggest to smallest.

7) What's the difference between a meteoroid, a meteorite, and a meteor?

8) The fact that some of Jupiter's moons have highly inclined orbits, some even have near polar orbits, is an indication of what concerning these moons?

9) What are the Lagrangian points in a planet's orbit? Where are they located?

10) Where are the Kuiper Belt, the Asteroid Belt, and the Oort Cloud, and what is located in each?

11) Draw the layers of the sun.

12) Describe the astrometric method of searching for extrasolar planets (planets orbiting other stars.)

13) What is the source of the sun's energy? (What powers the sun?)

14) What gas is the largest component of the Jovian planets? What gas is the largest component of the sun. Why would we expect / not expect that the giant planets and the sun have the same major components?

15) Which Jovian planets, if any, have retrograde rotation?