Q: How many years does it take Pluto to orbit around the sun?A: 3B: 15C: 97D: 248-40. Q: What is the smallest planet?A: MercuryB: EarthC: PlutoD: Venus-39. Q: Which planet has the fastest winds, blowing at speeds of over 2,400 km (1500 miles) per hour?A: UranusB: NeptuneC: PlutoD: Saturn-38. Q: Which planet was the first planet located through mathematical predictions rather than through regular observations of the sky?A: NeptuneB: PlutoC: UranusD: Mercury-37. Q: Which planet has the most moons?A: JupiterB: Mercur圜: MarsD: Uranus-36. Q: How many moons does Jupiter have?A: 12B: 14C: 16D: 18-35. Q: What is the Great Red Spot and Jupiter?A: A volcanic reaction that has lasted over 100 yearsB: A storm that has lasted over 100 yearsC: A storm that has lasted almost 10 yearsD: A giant red lake-34. Q: How large is jupiter's mass when compared to the other planets in the Solar System?A: twice as big as all the other planets combinedB: as big as all the other planets combinedC: three times as big as all the other planets combinedD: four times as big as all the other planets combined-33. Q: What is the largest planet in the Solar System?A: MarsB: SaturnC: NeptuneD: Jupiter-32. Q: Which planet is Olympus Mons, the highest volcano in the Solar System, on?A: JupiterB: MarsC: VenusD: Mercury-31. Q: Which moon is a moon of Mars?A: PhobosB: IoC: GanymedeD: Charon-30. Q: How long is Mercury's day?A: 5 minutesB: 10 Earth daysC: 176 Earth daysD: 3 Earth years-29. Q: Which planet has the hottest temperatures?A: MercuryB: MarsC: VenusD: Pluto-28. Q: Which is shorter, Mercury's day or year?A: dayB: year-27. Q: What is the comet belt outside of Pluto's orbit called?A: the Oort cloudB: Kuiper BeltC: Main asteroid BeltD: Halley Belt-26. Q: How long could a long-period comet take to orbit around the Sun?A: 1000 yearsB: 10000 yearsC: 100000 yearsD: 30 million years-25. Q: Where do most comets arrive from?A: the asteroid beltB: the Oort cloudC: the Milky WayD: Saturns rings-24. Q: What asteroid was the focus of the NEAR spacecraft?A: ErosB: IoC: GaspraD: Ida-23. Q: Where is the main asteroid belt in the Solar System?A: Just outside Pluto's orbitB: Between Earth and MarsC: Between Neptune and SaturnD: Between Mars and Jupiter-22. Q: What is the rotational period of Earth?A: 1 yearB: 48 hoursC: 24 hoursD: 12 hours-21. Q: What is the only known moon of Pluto?A: PlutoniaB: CharonC: IoD: Ganymede-19. Q: What is the largest terrestrial planet?A: MarsB: Mercur圜: VenusD: Earth-18. Q: Which is the densest planet?A: MarsB: EarthC: JupiterD: Pluto-17.

Q: How much meteoritic material do scientists estamate falls on the Earth each day?A: 1 poundB: 1 tonC: 10 tonsD: more than 1000 tons-16. Q: Which planet has the largest ring system?A: JupiterB: PlutoC: MercuryD: Saturn-15. Q: What is the most volcanically active body in the solar system?A: MarsB: IoC: GanymedeD: Pluto-14. Q: Which planet is not a terrestrial planet?A: SaturnB: EarthC: MarsD: Venus-13. Q: Which planet is not a gas giant?A: NeptuneB: SaturnC: MarsD: Jupiter-12. Q: What is the farthest planet from the sun?A: PlutoB: MarsC: VenusD: Jupiter-11.

Q: What is the eighth planet from the sun?A: JupiterB: PlutoC: UranusD: Neptune-10. Q: What is the sixth planet from the sun?A: SaturnB: MarsC: JupiterD: Pluto-9. Q: What is the seventh planet from the sun?A: JupiterB: UranusC: NeptuneD: Pluto-8. Q: What is the fifth planet from the sun?A: SaturnB: MarsC: UranusD: Jupiter-7. Q: What is the fourth planet from the sun?A: EarthB: MarsC: VenusD: Jupiter-6. Q: What is the third planet from the sun?A: EarthB: MarsC: JupiterD: Venus-5. Q: What is the second planet from the sun?A: MercuryB: EarthC: MarsD: Venus-4. Q: What planet is closest to the sun?A: MarsB: Mercur圜: EarthD: Venus-3. Q: How many planets are there in the Solar System?A: 7B: 8C: 9D: 10-2. Click here for the Answers to Solar System questionsġ.

Planet quiz for kids