1. Comets & Meteors Asteroids & their Belt Outer Planets Dwarf Planets Far Out! 10 20 30 40 50

2. Comets & Meteors (10) Which – comets or meteors – appear from time to time in Earth’s atmosphere?

3. Comets & Meteors (20) The word “comet” come from a Latin word meaning...

4. Comets & Meteors (30) Complete the sequence: Meteoroid, meteor, …

5. Comets & Meteors (40) What the relationship between comets and meteor showers?

6. Comets & Meteors (50) Which is larger? A comet’s nucleus, tail, coma, or head?

7. Asteroids & their Belt (10) Between which two planets is the main asteroid belt located?

8. Asteroids & their Belt (20) Asteroids are composed primarily of what two main ingredients: metals and …

9. Asteroids & their Belt (30) Do astronomers believe that the asteroids were once a planet that was pulled apart by Jupiter’s gravity?

10. Asteroids & their Belt (40) Do Earth-orbit crossing asteroids exist?

11. Asteroids & their Belt (50) Is there any evidence that Earth has been hit by an asteroid, even once?

12. Outer Planets (10) Which of the following is NOT a planet according to astronomers? Uranus, Neptune, Pluto

13. Outer Planets (20) Are Uranus and Neptune considered by astronomers to be rocky, gaseous, or icy planets?

14. Outer Planets (30) Which of the outer planets – if any – spins like planet Venus (backward)?

15. Outer Planets (40) Every other century, Pluto crosses over which outer planet’s orbit?

16. Outer Planets (50) What is it about the outer planets that their atmospheres appear blue or blue-green?

17. Dwarf Planets (10) Pluto is no longer considered a planet by most astronomers. What classification do they use for it today?

18. Dwarf Planets (20) Has a space probe from Earth ever visited a dwarf planet?

19. Dwarf Planets (30) Is it true that Pluto is the largest of all the dwarf planets?

20. Dwarf Planets (40) Are the largest asteroids nowadays considered to be classified among the dwarf planets?

21. Dwarf Planets (50) Give the name of the largest known dwarf planet orbiting the sun.

22. Far Out! (10) What is the name of the belt in the deep solar system from where comets typically come?

23. Far Out! (20) What is the name of the cloud of comet bodies that generally is considered the outermost portion of the solar system?

24. Far Out! (30) What is the name of the solar boundary that is the farthest extent of the solar system?

25. Far Out! (40) What is the name of the star located nearest to Earth?

26. Far Out! (50) Which is more distant, the solar system’s “deep freezer” of comet bodies or Alpha Centauri located a mere 4.3 light years distant?