Name: The Planets Martin

Date:

Period:

Planets / AU
(Relative distance from sun) / Time to Orbit Sun (Year) / Length of Day / Diameter
(KM) / Relative Mass (Earth=1) / Density
(g/cm3) / Number of Moons / Atmosphere / Composition
Mercury / 0.39 / 88 days / 59 days / 4878 / 0.06 / 5.4 / 0 / None / Rocky/Metallic
Venus / 0.72 / 225 days / 244 days / 12,104 / 0.82 / 5.2 / 0 / Thin / Rocky/Metallic
Earth / 1.00 / 365 days / ~24 hours / 12,756 / 1.00 / 5.5 / 1 / Thin / Rocky/Metallic
Mars / 1.52 / 687 days / 24.5 hours / 6794 / 0.11 / 3.9 / 2 / Very thin / Rocky/Metallic
Jupiter / 5.20 / 12 years / ~10 hours / 143,884 / 317.87 / 1.3 / 63 / Very Thick
(Windy) / Gas/Ice
Saturn / 9.54 / 29.5 years / 10 hours 15 min / 120,536 / 95.14 / 0.7 / 31 / Very Thick
(Windy) / Gas/Ice
Uranus / 19.18 / 84 years / 17 hours 14 min / 51,118 / 14.56 / 1.2 / 25 / Very Thick
(Windy) / Gas/Ice
Neptune / 30.06 / 165 years / 16 hours
3 min / 50,530 / 17.21 / 1.7 / 13 / Very Thick / Gas/Ice
Pluto???
(planet x) / 39.44 / 248 years / 6.4 days / 2300 / 0.002 / 1.8 / 1 / Usually Thin or none / Ice/little rock

1. Which 4 planets are closest to the sun? (Hint: Earth is one AU from the sun)

2. Which four planets have the largest diameter?

3. What relationship do you see between distance from the sun and the time it takes to orbit?

4. Excluding Pluto, what is the composition of the four inner planets like compared to the four outer planets?

5. Which planets have a mass equal to or less than Earth’s mass?

6. If a planet is very big, does that mean that its density is high or low? Explain your answer!

7. Which four Planets are terrestrial? Which four are Jovian? Does Pluto fit in a category?