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1. Q: How many planets are there in the Solar System?C: 9-------------------------------------2. Q: What planet is closest to the sun?B: Mercury-------------------------------------3. Q: What is the second planet from the sun?D: Venus-------------------------------------4. Q: What is the third planet from the sun?A: Earth-------------------------------------5. Q: What is the fourth planet from the sun?B: Mars-------------------------------------6. Q: What is the fifth planet from the sun?D: Jupiter-------------------------------------7. Q: What is the seventh planet from the sun?B: Uranus-------------------------------------8. Q: What is the sixth planet from the sun?A: Saturn-------------------------------------9. Q: What is the eighth planet from the sun?D: Neptune-------------------------------------10. Q: What is the farthest planet from the sun?A: Pluto-------------------------------------11. Q: Which planet is not a gas giant?C: Mars-------------------------------------12. Q: Which planet is not a terrestrial planet?A: Saturn-------------------------------------13. Q: What is the most volcanically active body in the solar system?B: Io-------------------------------------14. Q: Which planet has the largest ring system?D: Saturn-------------------------------------15. Q: How much meteoritic material do scientists estamate falls on the Earth each day?D: more than 1000 tons-------------------------------------16. Q: Which is the densest planet?B: Earth-------------------------------------17. Q: What is the largest terrestrial planet?D: Earth-------------------------------------18. Q: What is the only known moon of Pluto?B: Charon-------------------------------------19. Q: What is the Earth's radius?A: 6378 Km-------------------------------------20. Q: What is the rotational period of Earth?C: 24 hours-------------------------------------21. Q: Where is the main asteroid belt in the Solar System?D: Between Mars and Jupiter-------------------------------------22. Q: What asteroid was the focus of the NEAR spacecraft?A: Eros-------------------------------------23. Q: Where do most comets arrive from?B: the Oort cloud-------------------------------------24. Q: How long could a long-period comet take to orbit around the Sun?D: 30 million years-------------------------------------25. Q: What is the comet belt outside of Pluto's orbit called?B: Kuiper Belt-------------------------------------26. Q: Which is shorter, Mercury's day or year?B: year-------------------------------------27. Q: Which planet has the hottest temperatures?C: Venus-------------------------------------28. Q: How long is Mercury's day?C: 176 Earth days-------------------------------------29. Q: Which moon is a moon of Mars?A: Phobos-------------------------------------30. Q: Which planet is Olympus Mons, the highest volcano in the Solar System, on?B: Mars-------------------------------------31. Q: What is the largest planet in the Solar System?D: Jupiter-------------------------------------32. 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 combined-------------------------------------33. Q: What is the Great Red Spot and Jupiter?B: A storm that has lasted over 100 years-------------------------------------34. Q: How many moons does Jupiter have?C: 16-------------------------------------35. Q: Which planet has the most moons?D: Uranus-------------------------------------36. Q: Which planet was the first planet located through mathematical predictions rather than through regular observations of the sky?A: Neptune-------------------------------------37. Q: Which planet has the fastest winds, blowing at speeds of over 2,400 km (1500 miles) per hour?B: Neptune-------------------------------------38. Q: What is the smallest planet?C: Pluto-------------------------------------39. Q: How many years does it take Pluto to orbit around the sun?D: 248-------------------------------------40. Q: Which is the coldest planet of the Solar System?A: Pluto-------------------------------------Click here for the Solar System questions
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