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Transcript
The Inner Planets The Inner Planets Terrestrial Planets – Rocky Surface • • • • Mercury Venus Earth Mars Mercury • Size compared to the Earth (diameter) • 4,878 km • Surface Features • Rocky, flat plains, craters • Atmosphere Features • Thin atmosphere • Hot 430°C • Cold -170ºC Mercury • Relative Distance from Sun (kilometers) • 58,000,000 km • Ability to Support Life • No • Too hot, no atmosphere • Other Facts/ Time to Orbit Sun • Smallest Planet • Biggest temperature Difference • Time to Orbit • 0.24 years Venus • Size compared to the Earth (diameter) • 12,104 km • Surface Features • Rocky, Earth’s twin, • Same size, • Day longer than year • Atmosphere Features • • • • Thick clouds Made of sulfuric acid Great Pressure Greenhouse Venus • Relative Distance from Sun (kilometers) • 108,000,000 km • Ability to Support Life • No • Too much pressure, toxic atmosphere • Other Facts/ Time to Orbit Sun • Rotates backward • Morning star • T to Orbit = 0.62 years Earth • Size compared to the Earth (diameter) • 12,756 km • Surface Features • Rocky, • Many layers, • Oceans • Atmosphere Features • Rich atmosphere, • layered, • nitrogen, oxygen Earth • Relative Distance from Sun (kilometers) • 150,000,000 km • Ability to Support Life • Yes • Liquid water, suitable temperatures • Other Facts/ Time to Orbit Sun • 70% water • T to Orbit = 1 year Mars • Size compared to the Earth (diameter) • 6,794 km • Surface Features • Rocky, red, canals, ice caps, seasons, volcanoes • Atmosphere Features • Thin, carbon dioxide, • Thin clouds, • Dust storms Mars • Relative Distance from Sun (kilometers) • 228,000,000 km • Ability to Support Life • Possibly a long time ago when atmosphere was present • Other Facts/ Time to Orbit Sun • Red planet • 2 moons • T to Orbit = 1.9 years SUMMARY • Answer EQ: • Name the inner planets in order from the Sun, and describe their defining characteristics.
