1. What are the four terrestrial (rocky) planets in our Solar System?
   • Solution: Mercury, Venus, Earth, Mars.
2. What are the small, rocky bodies that orbit the Sun, primarily found between Mars and Jupiter, called?
   • Solution: Asteroids.
3. What is the largest asteroid in the asteroid belt?
   • Solution: Ceres.
4. What is the largest moon in our Solar System?
   • Solution: Ganymede.
5. What is the largest planet in our Solar System?
   • Solution: Jupiter.
6. What is the name of the fifth planet from the Sun?
   • Solution: Jupiter.
7. What is the name of the first artificial satellite launched into space?
   • Solution: Sputnik 1.
8. What is the name of the largest moon of Saturn?
   • Solution: Titan.
9. What is the name of the first man to walk on the Moon?
   • Solution: Neil Armstrong.
10. What is the name of the galaxy that contains our Solar System?
    • Solution: Milky Way.
11. What is the name of the star at the center of our Solar System?
    • Solution: The Sun.
12. What is the smallest planet in our Solar System?
    • Solution: Mercury.
13. What is the term for the boundary around a black hole beyond which nothing can escape?
    • Solution: Event Horizon.
14. What is the term for the path a planet takes as it orbits the Sun?
    • Solution: Orbit.
15. What planet has a day that is longer than its year?
    • Solution: Venus.
16. What planet has a rotation period of about 10 hours?
    • Solution: Jupiter.
17. What planet has a surface temperature of -224°C, making it the coldest in the Solar System?
    • Solution: Uranus.
18. What planet is known for having a prominent ring system?
    • Solution: Saturn.
19. What planet is known for its blue color due to methane in its atmosphere?
    • Solution: Neptune.
20. What planet is known as the Red Planet?
    • Solution: Mars.
21. What planet is known as Earth’s twin?
    • Solution: Venus.
22. What planet is the third from the Sun?
    • Solution: Earth.
23. What planet is the fourth from the Sun?
    • Solution: Mars.
24. What planet is the smallest in our Solar System?
    • Solution: Mercury.
25. What planet is tilted on its side?
    • Solution: Uranus.
26. What planet has the most extensive ring system?
    • Solution: Saturn.
27. What planet has the most moons?
    • Solution: Jupiter.
28. What planet has the most moons?
    • Solution: Jupiter.
29. What planet has the tallest volcano in the Solar System, Olympus Mons?
    • Solution: Mars.
30. What planet’s moons are named after characters from Shakespeare’s plays?
    • Solution: Uranus.
31. What is the coldest planet in the Solar System?
    • Solution: Uranus.
32. What is the densest planet in the Solar System?
    • Solution: Earth.
33. What is the first human-made object to leave the Solar System?
    • Solution: Voyager 1.
34. What is the hottest planet in our Solar System?
    • Solution: Venus.
35. What is the name of the first human-made object to leave the Solar System?
    • Solution: Voyager 1.
36. What is the name of the second-largest planet in our Solar System?
    • Solution: Saturn.
37. What is the only planet known to support life?
    • Solution: Earth.
38. What is the region of space beyond Neptune filled with small icy bodies called?
    • Solution: The Kuiper Belt.
39. What planet is named after the Roman god of agriculture?
    • Solution: Saturn.
40. What planet is known for having a storm called the Great Dark Spot?
    • Solution: Neptune.
41. What planet is known for its Great Red Spot?
    • Solution: Jupiter.
42. What planet is the densest in the Solar System?
    • Solution: Earth.
43. What are the icy bodies that originate from the Kuiper Belt and Oort Cloud and have a tail called?
    • Solution: Comets.
44. What are the two largest planets in our Solar System?
    • Solution: Jupiter and Saturn.
45. What is the name of the dwarf planet located in the Kuiper Belt?
    • Solution: Pluto.
46. What planet has a day longer than its year?
    • Solution: Venus.
47. What planet has a moon named Triton?
    • Solution: Neptune.
48. What planet has a thick atmosphere of carbon dioxide and clouds of sulfuric acid?
    • Solution: Venus.
49. What planet has the most eccentric (oval-shaped) orbit?
    • Solution: Mercury.
50. What is the name of the largest moon of Jupiter?
    • Solution: Ganymede.

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