1. This planet appears to be lying on its side. A. Jupiter B. Saturn C. Neptune D. Uranus E. none of these
2. This planet is the hottest on the solar system. This is due to the swirling clouds pf sulfur and sulfuric acid that obscure its surface making its atmosphere heavy and dense. A. Mercury B. Venus C. Earth D. Mars E. none of these
3. The only asteroid known to have a satellite. A. Ceres B. Eris C. Makemake D. Ida E. none of these
4. It is an anticyclonic storm on Jupiter that has been existing for 180 years and it is expected to last for another 345 years. A. GDS B. GBS C. GSS D. SSS E. none of these
5. It is the second largest planet and it has spectacular rings that can be seen on Earth by telescope. A. Jupiter B. Saturn C. Neptune D. Uranus E. none of these
6. It divides the planets into Inner Planets and Outer Planets. A. Kuiper Belt B. Asteroid Belt C. Oort Cloud D. heliopause E. none of these
7. Pluto is now considered a ____. A. Giant Planet B. Dwarf Planet C. Elf Planet D. Little Solar System E. none of these
8. It is made up of many small comets orbiting around the sun. It is the area wherein scientists believed Pluto to be a part of. A. Kuiper Belt B. Asteroid Belt C. Oort Cloud D. heliopause E. none of these
9. The belt in number 8 was discovered by ___. A. Nicolaus Copernicus B. Galileo Galilei C. Gerard Kuiper D. Ptolemy E. none of these 10. One of the definitions of a planet is that it should be in orbit around the sun and that it should have no other planet coinciding with its ___. A. surface B. atmosphere C. satellite D. orbit E. none of these
11. Majority of the planets have a counterclockwise direction. This is called ___ motion. A. prograde B. retrograde C. stationary D. constant E. none of these
12. Only Venus among the 8 planets has a ___ motion. It is a clockwise motion. A. prograde B. retrograde C. stationary D. constant E. none of these
13. The ____ planets are made up of mostly gas. A. Rocky Planets B. Inner Planets C. Outer Planets D. Giant Planets E. none of these
14. The only planet where there is life. A. Mercury B. Venus C. Earth D. Mars E. none of these
15. It is a heavily-cratered planet and is fastest in revolving around the sun. A. Mercury B. Venus C. Earth D. Mars E. none of these
16. An anticyclonic storm on Neptune similar to that of Jupiter’s; only it lasts for a shorter period of time. A. GDS B. GBS C. GSS D. SSS E. none of these
17. The fifth planet from the sun and it is the largest planet from the solar system. A. Jupiter B. Saturn C. Neptune D. Uranus E. none of these
18. The nearest star to the Earth. A. Sun B. Proxima Centauri C. Alpha Centauri D. Rigel E. none of these 19. Pluto’s satellite and is now believed to be its twin planet. A. Ceres B. Eris C. Makemake D. Charon E. none of these
20. It is the first known asteroid and it is now considered as a dwarf planet like Pluto. A. Ceres B. Eris C. Makemake D. Ida E. none of these