1. Our Solar System

4. How much a 100 pound person would weigh 38 Pounds

5. Who discovered Mercury Ancients

6. When Mercury was discovered Unknown

7. Rotation (1 Day): 59 Earth Days

8. Revolution (1 year): 88 Earth Days

9. Number of Moons NONE

10. Number and Composition of Rings: None

11. Temperature (Average/Range) 840°F  -275°F

12. Weather Very hot in the day and summer. Very cold at night and winter.

13. Appearance/ Features Looks gray Flat plains, steep cliffs, craters

14. Facts: Smallest planet Closest to the sun Atmosphere: No true atmosphere Some gasses have been detected

16. How Much a 100 Pound person would weigh on Venus: 91 pounds

17. Who discovered Venus Ancients

18. When Venus was discovered Unknown

19. Rotation (1 Day): 243 Earth Days Has a day longer than its year.

20. Revolution (1 year): 225 Earth Days

21. Number of Moons: None

22. Number and Composition of rings None

23. Temperature (Average/Range) Average 870°F

24. Weather Lightning storms Very hot because of greenhouse effect (The atmosphere is so thick that it holds in most of the heat from the Sun.)

25. Appearance/Features Yellow Plains, mountains, canyons, valleys, volcanoes, craters

26. Facts: Extremely high temperatures because of the dense atmosphere. Atmosphere: 96% carbon dioxide 3% nitrogen Traces of sulfur dioxide and other gases

27. Earth

28. How much a 100 Pound person would weigh 100 pounds

29. Who discovered Earth Unknown

30. When Earth was discovered Unknown

31. Rotation (1 Day): 23.9 Hours

32. Revolution (1 Year): 365.26 Days

33. Number of Moons One

34. Number and Composition of rings None

35. Temperature (Average/Range) -126°F  136°F

36. Weather Seasons because of Earth’s tilted axis

37. Appearance/ Features: Blue, Green, Brown, White Mountains, Valley, Volcanoes Land masses Large ocean bodies

38. Fact: Supports Life Atmosphere 78% nitrogen 21% Oxygen Several layers

40. How much a 100 pound person weighs on Mars 38 pounds

41. Who discovered Mars Ancients

42. When Mars was discovered Unknown

43. Rotation (1 Day): 24.6 Hours

44. Revolution (1 Year): 687 Earth Days Almost twice as long as Earth

45. Number of Moons: Two

46. Number and Composition of Rings None

47. Temperature (Average/Range) -195°F  70°F

48. Weather Clouds and winds Dust Storms Seasons

49. Appearance/Features: Channels, valleys, polar ice caps, canyons, mountains, plains, volcanoes, craters.

50. Fact: Has seasons like Earth. Atmosphere: 95% carbon dioxide 2.7% nitrogen 1.6% argon

51. Asteroid Belt

53. How much a 100 Pound person would weigh 236.4 pounds Has much more gravity than Earth

54. Who discovered Jupiter Ancients

55. When Jupiter was discovered Unknown

56. Rotation (1 Day): 9.8 Hours

57. Revolution (1 Year): 11.8 Earth Years

58. Number of Moons: At least 67

59. Number and Composition of rings 4 made of dust

60. Temperature (Average/Range) Average -162°F

61. Weather Clouds, winds, storms, lightning.

62. Appearance/Features: Red and White bands Great Red Spot – swirling cloud of gas (3 Earth sizes in diameter)

63. Fact: Largest planet in our solar system Atmosphere: Hydrogen and Helium

65. How much a 100 pound person would weigh 107 pounds

66. Who discovered Saturn Ancients

67. When Saturn was discovered Unknown

68. Rotation (1 Day): 10.2 Hours

69. Revolution (1 Year): 29.4 Earth Years

70. Number of Moons: At least 62

71. Number and composition of rings 7 main rings made of ice particles

72. Temperature (Average/Range) Average -218°F

73. Weather Seasons Storms, lightning in clouds

74. Appearance/Features: Looks yellow Beautiful rings that appear as flat disks.

75. Fact: Has seven major rings

77. How much a 100 pound person would weigh 88.9 Pounds

78. Who discovered Uranus William Herschel

79. When Uranus was discovered 1781

80. Rotation (1 Day): 17.9 Hours

81. Revolution (1 Year): 84 Earth Years

82. Number of Moons: 27

83. Number and Composition of rings 13 rings probably made of ice

84. Temperature (Average/Range) Average -323°F

85. Weather Seasons Very cold storms

86. Appearance/Features: Pale Blue-green color Dark spot make of whirling gases like on Jupiter

87. Fact: Rotates on its side

89. How much a 100 pound person would weigh 112.5 pounds

90. Who discovered Neptune Urbain Le Verrier Johann Galle Heinrich d’Arrest

91. When Neptune was discovered 1846

92. Rotation (1 Day): 16.1 Hours

93. Revolution (1 Year): 164.8 Earth Years

94. Number of Moons: 14

95. Number and Composition of rings 6 rings made of dust

96. Temperature (Average/Range) Average -353°F

97. Weather Seasons last 40 years

98. Appearance/Features: Blue, thick layers of clouds

99. Fact: Has violent winds of 1,250 mph

101. How much a 100 Pound person would weigh 6.7 pounds

102. Who discovered Pluto Clyde W. Tombaugh

103. When Pluto was discovered 1930

104. Length of rotation (1 day) 6 Earth days

105. Length of Revolution (1 year) 248 Earth years

106. Number of moons 3

107. Number and Composition of rings Pluto possibly has rings but it is not confirmed

108. Temperature (Average/Range) -385°F

109. Weather Very cold and icy Atmosphere may freeze and turn to snow

110. Appearance/Features Light brown Polar caps and ice Know little about surface

111. Interesting facts Pluto has been considered a dwarf planet for 7 years.