1. What Do You Know about our Solar System???

2. Is Pluto bigger, smaller or the same size as the Earth's moon? a) Smaller b) Bigger c) The same size MOON

3. Is Pluto bigger, smaller or the same size as the Earth's moon? a) Smaller b) Bigger c) The same size MOON

4. Which planet is closest to the Sun? a) Mercury b) Earth c) Venus EARTH

5. Which planet is closest to the Sun? a) Mercury b) Earth c) Venus EARTH

6. What is the maximum temperature on the surface of Mercury (degrees Celsius)? a) 16 0 C b) 427 0 C c) 937 0 C

7. What is the maximum temperature on the surface of Mercury (degrees Celsius)? a) 16 0 C b) 427 0 C OUCH! c) 937 0 C

8. Earth is the... a) third planet from the Sun b) fourth planet from the Sun c) fifth planet from the Sun EARTH

9. Earth is the... a) third planet from the Sun b) fourth planet from the Sun c) fifth planet from the Sun EARTH

10. What is the minimum distance between Mars and Earth? 56 million km 264 million km 837 million km EARTH

11. What is the minimum distance between Mars and Earth? 56 million km 264 million km 837 million km EARTH

12. What is the maximum temperature on Mars (degrees Celsius)? a) 17 0 C b) 67 0 C c) 107 0 C

13. What is the maximum temperature on Mars (degrees Celsius)? a) 17 0 C BRR! b) 67 0 C c) 107 0 C

14. Which is the biggest planet? a) Uranus b) Jupiter c) Saturn

15. Which is the biggest planet? a) Uranus b) Jupiter c) Saturn

16. Which 4 planets are closest to the sun? a) Mercury, Venus, Earth and Mars b) Mercury, Saturn, Uranus and Mars c) Uranus, Jupiter, Earth and Saturn EARTH

17. Which 4 planets are closest to the sun? a) Mercury, Venus, Earth and Mars b) Mercury, Saturn, Uranus and Mars c) Uranus, Jupiter, Earth and Saturn EARTH

18. How far is Uranus from the Sun? a) 683 million km b) 2.8 billion km c) 23.7 billion km

19. How far is Uranus from the Sun? a) 683 million km b) 2.8 billion km c) 23.7 billion km

20. Which planet is most similar to Earth in size, mass, composition and distance from the Sun? a) Uranus b) Mars c) Venus

21. Which planet is most similar to Earth in size, mass, composition and distance from the Sun? a) Uranus b) Mars c) Venus

22. Which planet is 'The Red Planet' ? a) Saturn b) Uranus c) Mars

23. Which planet is 'The Red Planet' ? a) Saturn b) Uranus c) Mars

24. Which is the smallest planet in the Solar System (not counting Pluto)? a) Mars b) Earth c) Mercury EARTH

25. Which is the smallest planet in the Solar System (not counting Pluto)? a) Mars b) Earth c) Mercury EARTH

26. How many planets are visible from Earth without a telescope? a) 4 b) 5 c) 6

27. How many planets are visible from Earth without a telescope? a) 4 b) 5 c) 6

28. What do all inner planets have in common? a)period of revolution b)diameter c)size and rocky surfaces d)period of rotation EARTH

29. What do all inner planets have in common? a)period of revolution b)diameter c)size and rocky surfaces d)period of rotation EARTH

30. Aside from Earth, which inner planet once had water on its surface? A. Mercury B. Europa C. Venus D. Mars EUROPA EARTH

31. Aside from Earth, which inner planet once had water on its surface? A. Mercury B. Europa C. Venus D. Mars EUROPA EARTH

32. What do the four outer planets have in common? A. larger than Earth and are made mainly of gases. B. nearly the same size as Earth and are made mainly of gases. C. much larger than Earth and are solid. D. about the same size as Earth and are solid.

33. What do the four outer planets have in common? A. larger than Earth and are made mainly of gases. B. nearly the same size as Earth and are made mainly of gases. C. much larger than Earth and are solid. D. about the same size as Earth and are solid.

34. The atmospheres of the gas giant planets cannot escape into space because A. the gases are too heavy. B. the gases solidify at higher elevations. C. the planets have very strong gravities. D. although they are big, the planets have little mass.

35. The atmospheres of the gas giant planets cannot escape into space because A. the gases are too heavy. B. the gases solidify at higher elevations. C. the planets have very strong gravities. D. although they are big, the planets have little mass.

36. Pluto is different from the other outer planets because it A. is almost entirely made of gases. B. is much larger than the others. C. Has he most moons. D. is small and has a solid surface.

37. Pluto is different from the other outer planets because it A. is almost entirely made of gases. B. is much larger than the others. C. Has he most moons. D. is small and has a solid surface.

38. The asteroid belt is located A. between Earth and Mars. B. between Mars and Jupiter. C. between Jupiter and Saturn. D. between Saturn and Uranus.

39. The asteroid belt is located A. between Earth and Mars. B. between Mars and Jupiter. C. between Jupiter and Saturn. D. between Saturn and Uranus.

40. Earth is unique among the planets because of A. its rocky surface. B. its oceans. C. its large size. D. the direction in which it rotates. EARTH

41. Earth is unique among the planets because of A. its rocky surface. B. its oceans. C. its large size. D. the direction in which it rotates. EARTH

42. Venus and Earth are much alike in terms of A. atmospheres B. rates of rotation. C. size and density. D. direction of rotation. EARTH

43. Venus and Earth are much alike in terms of A. atmospheres B. rates of rotation. C. size and density. D. direction of rotation. EARTH

44. Saturn’s rings are made up mostly of A. nitrogen and helium. B. water vapor. C. volcanic dust particles. D. chunks of ice and rock.

45. Saturn’s rings are made up mostly of A. nitrogen and helium. B. water vapor. C. volcanic dust particles. D. chunks of ice and rock.

46. Uranus is different from most other planets because it A. is the farthest from the sun. B. is mostly nitrogen and helium. C. rotates on its side. D. has the most moons.

47. Uranus is different from most other planets because it A. is the farthest from the sun. B. is mostly nitrogen and helium. C. rotates on its side. D. has the most moons.

48. Which is the only planet know to have liquid water? A. Saturn B. Mars C. Earth D. Jupiter EARTH

49. Which is the only planet know to have liquid water? A. Saturn B. Mars C. Earth D. Jupiter EARTH

50. What gas is most common in the atmospheres of the gas giants? A. Methane B. Hydrogen C. Oxygen D. Nitrogen

51. What gas is most common in the atmospheres of the gas giants? A. Methane B. Hydrogen C. Oxygen D. Nitrogen