Mercury Closest Planet to the Sun Solid rocky surface Very little atmosphere Rotation Rate = once per 59 days Revolution Rate = once per 88 days Maximum Temperature = 425 degrees C (800 degrees F) Minimum Temperature = -180 degrees C (-300 degrees F) No moons Venus 2nd planet from the Sun Very thick atmosphere Electrical storms, sulfuric acid rain Atmospheric pressure = 90 times Earth's Rotation Rate = once per 243 days Revolution Rate = once per 225 days Surface Temperature = 480 degrees C (900 degrees F) No moons Earth 3rd planet from the Sun 75 % covered with water Atmosphere 76% Nitrogen, 21% Oxygen Rotation Rate = once per 24 hours Revolution Rate = once per 365 days (one year) Plant and animal life 1 moon Mars 4th planet from the Sun Solid rocky surface: dust soil, contains iron oxide (rust) Very thin atmosphere: mostly carbon dioxide Rotation Rate = once per 24.6 hours Revolution Rate = once per 687 days Maximum Temperature = 27 degrees C (80 degrees F) Minimum Temperature = -133 degrees C (-207 degrees F) 2 moons Jupiter 5th planet from the Sun Largest planet One of the four "Gas Giants" Simple, thin ring system Rotation Rate = once per 10 hours Revolution Rate = once per 10 years Great Red Spot: giant storm at least 16 moons (more recent count 28) Saturn 6th planet from the Sun Second of the four "Gas Giants" Second largest planet Atmosphere: turbulent, storms Rotation Rate = once per 10.25 hours Revolution Rate = once per 29 years 
(Earth's Rotation Rate; =; T:once per 243 days) (the Sun 75 %; covered; with water Atmosphere 76% Nitrogen)
Earth's Rotation Rate the Sun 75 %
= covered
T:once per 243 days
with water Atmosphere 76% Nitrogen