Science Grade 6: Planetary Information Quiz

Planet Information Summary

Equatorial Radius

• Mercury: 2,439.70 km
• Venus: 6,051.80 km
• Earth: 6,371.00 km
• Mars: 3,389.50 km
• Jupiter: 69,911.00 km
• Saturn: 58,232.00 km
• Uranus: 25,362.00 km
• Neptune: 24,622.00 km

Density

• Mercury: 5.43 g/cm³
• Venus: 5.24 g/cm³
• Earth: 5.51 g/cm³
• Mars: 3.93 g/cm³
• Jupiter: 1.33 g/cm³
• Saturn: 0.69 g/cm³
• Uranus: 1.27 g/cm³
• Neptune: 1.64 g/cm³

Rotation Period

• Mercury: 58.646 Earth days
• Venus: 243.018 Earth days
• Earth: 0.997 Earth days
• Mars: 1.026 Earth days
• Jupiter: 0.414 Earth days
• Saturn: 0.444 Earth days
• Uranus: 0.718 Earth days
• Neptune: 0.671 Earth days

Orbit Period

• Mercury: 0.24 Earth years
• Venus: 0.62 Earth years
• Earth: 1.00 Earth years
• Mars: 1.88 Earth years
• Jupiter: 11.86 Earth years
• Saturn: 29.45 Earth years
• Uranus: 84.02 Earth years
• Neptune: 164.79 Earth years

Solid Surface and Atmosphere

• Mercury: Yes, with atmosphere components O2, Na, H2
• Venus: Yes, with atmosphere components He, K
• Earth: Yes, with atmosphere components N2, O2, Ar
• Mars: Yes, with atmosphere components CO2
• Jupiter: No, with atmosphere components H2, He
• Saturn: No, with atmosphere components H2, He
• Uranus: No, with atmosphere components CH4
• Neptune: No, with atmosphere components H2, He, CH4

Moons and Rings

• Mercury: 0 moons, no rings
• Venus: 0 moons, no rings
• Earth: 1 moon, no rings
• Mars: 2 moons, no rings
• Jupiter: 95 moons, yes rings
• Saturn: 146 moons, yes rings
• Uranus: 28 moons, yes rings
• Neptune: 14 moons, yes rings

Mean Temperature

• Mercury: 333°F (167°C)
• Venus: -85°F (-65°C)
• Earth: -166°F (-110°C)
• Mars: -220°F (-140°C)
• Jupiter: -320°F (-195°C)
• Saturn: -330°F (-200°C)

Notable Explorations

• Mercury: Messenger
• Venus: Mariner 4, Venera 7
• Earth: ISS
• Mars: Mars orbiter, Mariner 4, Viking 1 and 2, Pioneer 10 and 11, Spirit and Opportunity